Barnaby had not eaten a full meal in four days.

Lucas noticed it the way he noticed everything now -- carefully, clinically, cataloguing symptoms with a precision that felt, increasingly, like the only tool he had left for processing a loss he wasn't otherwise equipped to handle. The cat picked at his food, left most of it untouched, and spent his days curled in the exact corner of the living room where Mia used to sit cross-legged with her sketchbook during the weeks she'd still come by freely, back before doorways had turned into boundaries and laundry rooms into minefields. Even the light in that corner, he'd noticed, seemed to fall differently now, or perhaps that was simply his own grief projecting itself onto furniture and floor space that had done nothing wrong except witness something good come apart.

"You're doing the sad thing again," Lucas said, crouching beside him on a Tuesday evening, offering a piece of the salmon treat Barnaby usually devoured without hesitation, tail flicking with anticipation before the actual approach. The cat sniffed it once, unenthusiastic, and turned his face away, tucking his nose beneath one paw with the specific, theatrical despondency of an animal who had decided, apparently, that grief deserved full commitment.

He'd told himself, for the first two days, that it was simply the adjustment period -- cats disliked change, and the return to a fully separated custody schedule after weeks of near-constant overlap was, by any reasonable measure, a significant disruption. By day three, when Barnaby refused breakfast entirely and spent the whole day motionless beneath the coffee table, unmoved even by the specific rattle of the treat bag that usually brought him running from anywhere in the apartment, Lucas's professional concern outweighed his personal discomfort, and he brought him into the clinic for an actual examination, unwilling to trust his own judgment on a case that hit this close to home.

His colleague, Dr. Ferreira, ran the standard panel -- bloodwork, temperature, a careful palpation of his abdomen given the recent surgery -- and delivered her verdict with the particular gentleness reserved for a colleague clearly more invested than he was letting on.

He'd nearly cancelled the appointment twice that morning, telling himself he was overreacting, that a skipped meal or two hardly warranted a formal clinical workup using his own clinic's resources on his own pet, a use of professional privilege he generally tried to avoid extending to himself. But something about the flat, listless quality of Barnaby's stillness had unsettled him enough to override the impulse toward restraint, some instinct he didn't fully trust himself to name insisting that this particular problem deserved more than his own untrained observation to properly diagnose.

"Physically, he's fine," she said, setting down her stethoscope. "No fever, no pain response, bloodwork's entirely clean. This isn't medical, Lucas."

"Then what is it."

"You know exactly what it is. You just don't want to say it out loud in a professional setting." She gave him a knowing look, the kind that came from years of watching him treat every problem as a puzzle with a clinical solution. "Cats form strong social attachments, especially ones who've had an unusually consistent secondary caregiver for an extended period. If that person suddenly disappears from the routine, it's not unusual to see behavioral depression. Reduced appetite, lethargy, withdrawal. It's essentially grief, in the only language he has available to express it."

"He's not grieving. He still sees her. Every other day, for feedings."

"Passing custody handoffs at a doorway aren't the same as the kind of sustained presence he'd gotten used to. From what you've told me, he used to spend full days with her, sleep on her bed, follow her around the apartment. Now he gets brief, transactional visits. That's a significant downgrade in social contact, even if the total hours technically balance out on paper."

Lucas absorbed this in silence, looking down at Barnaby, who had resumed his position of dramatic collapse in the corner, tail draped listlessly over one paw. "So what do I do."

"That's not really a medical question, is it." Dr. Ferreira's expression softened, sympathy replacing her earlier clinical detachment. "For what it's worth, whatever happened between you and his other person, he's not the one who should have to pay the cost of the separation. If there's a way to restore more contact, even informally, I'd strongly recommend it. For his sake, if nothing else."

For his sake, if nothing else. The phrase followed Lucas home, echoing uncomfortably alongside every justification he'd built for respecting Mia's requested distance so completely that he'd stopped even texting to check in. He'd told himself it was respect. Looking at Barnaby now, hollowed out and listless in the corner of a living room that used to be full of easy noise and overlapping laughter, he wondered whether respect and abandonment had started, somewhere along the way, looking identical from a cat's perspective, and possibly from his own as well.

He called Mia that evening, choosing a call over a text specifically because he wanted her to hear the actual concern in his voice rather than risk it reading as manipulation on a screen.

"Hey," she answered, careful, the same guarded warmth she'd extended at every doorway handoff for the past week and a half.

"Hey. I don't want to overstep, but I wanted to let you know -- Barnaby's not doing well. Not eating properly, lethargic, spent most of today just lying in one spot without moving at all. I had Dr. Ferreira examine him. Physically he's fine. She thinks it's behavioral. Grief, essentially, over the reduced contact."

There was a long pause on the line, long enough that Lucas wondered if the call had dropped. "Grief," Mia said finally, quiet.

"Her word, not mine. Though I don't disagree with the assessment."

"Is he okay? Should I be worried?"

"He's not in immediate danger. But if this continues, prolonged appetite loss can create secondary health complications down the line. I wouldn't call you about this if I didn't think it mattered."

"Of course. I know you wouldn't." Another pause, softer this time. "Can I come see him? Just to see him. Not to -- not to talk about anything else."

"Yes. Please. Whenever works for you." He said it too quickly, the relief in his voice unmistakable even to his own ears, and he didn't bother trying to hide it.

She arrived twenty minutes later, still in her paint-stained cardigan, hair pulled back in the loose, practical knot she wore when working, and the moment she stepped through the door, Barnaby's head shot up from his listless sprawl with a speed that startled both humans in the room. He was across the floor and pressed against her ankles within seconds, meowing with an intensity that bordered on accusatory, as though personally holding her responsible for every day of his suffering, before headbutting her shin repeatedly and demanding, with his whole small body, to be picked up immediately.

"Oh, buddy." Mia crouched, scooping him into her arms, and the sound he made -- a deep, rusty, almost desperate purr, immediate and overwhelming -- audibly cracked something in both of them, watching. "I'm sorry. I'm so sorry, I didn't realize."

"Neither did I, not fully, until Dr. Ferreira spelled it out for me." Lucas stood a careful distance away, watching the reunion with an ache in his chest he wasn't sure how to categorize -- happiness for Barnaby, and something rawer and more complicated watching Mia's face soften into the exact warmth he'd been missing for over a week, a warmth he hadn't realized how much he'd been rationing himself against until it was suddenly, briefly, back in the room with him.

Barnaby settled into her arms with the boneless, total relief of an animal finally released from a burden he hadn't been built to carry, purring steadily, pressing his face repeatedly into the curve of her neck, and Mia held him close, murmuring soft, wordless reassurances, her own eyes suspiciously bright, blinking fast against whatever she wasn't quite ready to name in front of Lucas.

"I didn't think it would hit him this hard," she said eventually, still cradling him. "I thought he'd adjust. Cats are supposed to be independent."

"Apparently not this one. Apparently this one decided, somewhere in the last month, that having both of us was non-negotiable, and neither of us really consulted him on the new arrangement." Lucas said it lightly, though something underneath the words carried real weight, an observation he suspected applied to more than just the cat.

Mia looked up at that, something complicated passing behind her eyes, and for a moment neither of them said anything else, the small living room filled only with the sound of Barnaby's contented purring and the specific, charged silence of two people carefully avoiding the larger conversation still sitting, unresolved, between them.

"I should probably head back," she said eventually, though she made no immediate move to set Barnaby down. "I don't want to overstay. I know we agreed to keep some distance."

"You don't have to rush off on my account. Stay as long as you want with him. That's not a violation of anything."

"Isn't it, though?" She said it quietly, not quite meeting his eyes. "I don't actually know where the line is anymore, Lucas. I thought I did. Turns out separating our schedules didn't separate the parts of this that actually mattered."

Something in Lucas's chest tightened at the plain honesty of that, and he found himself, uncharacteristically, without a ready response, the careful, structured language he usually reached for entirely inadequate to the moment. "I don't know where the line is either," he admitted finally. "I've been trying to respect what you asked for as precisely as possible, and it's -- it's been harder than I expected, honestly. Watching him fall apart made that a lot more obvious than I wanted it to be, and I don't have a clean answer for what happens next, only that I don't want either of you disappearing from my life entirely because of one bad night I'm still trying to make right."

Mia set Barnaby down gently on the sofa, where he immediately curled into a tight, satisfied loaf, clearly unwilling to risk her leaving again by staying too far from her, and stood, brushing cat hair from her cardigan with the same absent, practiced motion Lucas remembered from a month of ordinary evenings that felt, suddenly, achingly distant.

"I should go," she said again, though her voice carried less certainty than the words themselves suggested.

"Okay." He walked her to the door, careful to keep an appropriate distance, though every part of the short walk felt weighted with everything neither of them was saying. At the threshold, she paused, looking back at Barnaby, then at Lucas, something unresolved and searching in her expression.

"Keep me updated on him," she said. "Please. Even if it's just texting. I don't want him to go through this again if it's avoidable, and I'd rather know sooner than later if something's actually wrong."

"I will." He hesitated, then added, carefully, "For what it's worth, I miss the version of this where you didn't have to ask me to keep you updated. Where it was just... normal, for both of us to know how the other one's day went."

Mia's expression flickered, something aching and unguarded passing through it before she carefully smoothed it back into neutrality. "I know," she said softly. "I miss that too."

She left without saying anything further, and Lucas closed the door behind her, standing in the quiet aftermath with Barnaby now purring contentedly on the sofa, fully restored by even that brief, careful visit, and found himself turning over her words -- separating our schedules didn't separate the parts of this that actually mattered -- with the same intense, deliberate focus he usually reserved for a difficult diagnosis, searching for the treatment plan hidden somewhere inside the problem, as though naming it precisely enough might make the solution reveal itself.

He didn't have one yet. But watching Barnaby sleep, sated and content for the first time in days, he understood, with sudden and uncomfortable clarity, that whatever solution existed would have to come from him finding a way back into her life that didn't feel, to either of them, like pressure -- some careful, patient path forward that respected the boundary she'd drawn while still, somehow, refusing to accept that the boundary needed to be permanent.

He spent that night awake longer than usual, staring at the ceiling, running through every interaction of the past week with the same analytical rigor he brought to a difficult case, searching for an opening, a reasonable excuse, anything that might let him close the distance without violating the explicit terms she'd asked him to respect. Somewhere around midnight, an idea began to take shape -- not sentimental, not emotionally loaded, but entirely, defensibly practical. The clinic needed a logo. Mia was, unquestionably, the best illustrator he knew, and hiring her would be, on paper at least, nothing more than sound business judgment.

It wasn't manipulation, he told himself, turning the idea over carefully in the dark. It was simply good business sense to hire a talented professional for a genuine need. If it also happened to offer a legitimate, low-pressure reason to be in the same room as her again, that was, he reasoned, an acceptable and entirely coincidental benefit, one that satisfied both his professional needs and the quieter, more personal one he wasn't quite ready to name out loud even to himself.

He fell asleep still refining the wording of the email he intended to send, Barnaby's steady, contented breathing from the foot of the bed the only sound in an apartment that finally, for one night, felt a little less hollow than it had in over a week.

He woke early, before his alarm, the idea from the night before still sitting fully formed in his mind with the specific clarity of a plan that had survived the scrutiny of sleep. He made coffee, sat at his kitchen table with his laptop open, and began drafting the email with the same careful attention he'd have given a formal referral letter, deleting and rewriting the opening line four separate times before settling on something that struck the right balance between professional and warm without tipping into anything that might read as an ulterior motive.

He read the draft back several times, agonizing over every word choice, worried it might read as either too pointed or too vague. He didn't send it that morning. He wanted to sit with it a while longer, make sure it held up under a second look before committing to something that carried this much quiet hope riding underneath its careful, businesslike phrasing.

That evening, checking on Barnaby per the arrangement, he found the cat noticeably brighter than the day before -- not fully himself, but no longer the hollowed-out shadow he'd been for most of the week. Small mercies, Lucas thought, watching him bat halfheartedly at a toy mouse, some of the desperate flatness finally beginning to lift now that regular contact with Mia had resumed, however carefully bounded.

He sat with the cat a long while that night, laptop open beside him, the unsent email still waiting in his drafts folder, and thought about all the ways a person could try to fix something without making it worse, and how difficult it was to tell, from the inside of his own careful planning, whether what he was building was a genuine bridge back toward her or simply an elaborate, well-intentioned excuse dressed up in professional language.

He didn't have an answer by the time he finally went to bed. He only knew, with the same quiet certainty that had carried him through every difficult decision of his adult life, that he wasn't ready to give up on finding one just yet.

The following morning, he called Priya's number by mistake -- Mia's contact card, saved under a nickname he'd added weeks ago in a moment of unguarded affection, sat directly above an old client's number he'd meant to reach instead, and his thumb, apparently, had its own opinions about which name deserved priority. He caught the error before it connected, staring at his phone with the specific, mortified realization of a man who had just discovered exactly how thoroughly one person had rearranged the architecture of his daily habits without his full awareness.

He thought, standing there in his kitchen with his own carelessness laid bare in front of him, about how strange it was that a person could occupy so much space in someone's routine and then, almost overnight, occupy almost none of it at all, at least not the visible, acknowledged kind. Barnaby still bridged the gap, still carried some fragment of her presence back and forth between their two apartments twice a day, but it wasn't the same as the real thing, and both humans in this arrangement, he suspected, understood that distinction more painfully than either had said aloud.

He drafted the clinic logo email three more times that day between appointments, refining the wording each time, removing anything that could be read as too personal and then second-guessing whether the resulting draft had become so clinical it might come across as cold instead. By evening, exhausted from a day of treating other people's pets while barely able to focus on his own emotional logistics, he decided the fourth draft was close enough, and resolved to send it first thing the next morning, once he'd had a full night's sleep and a clearer head to evaluate it with.

Barnaby, curled at the foot of his bed that night, seemed calmer than he had in days, as though some feline sense for hope or intention had picked up on the quiet, deliberate plan taking shape in his owner's mind, even before either human involved had any real evidence that it would work.