If Theo had only known he would have reassured Charlie that, considering he'd been only semi-awakened from a nightmare he'd experienced before being half-carried to this room and then letting himself be put in a vulnerable position out of necessity that the man was doing unspeakably well. It was hard not to hit a raw part of Theodore in any interaction with him, not when his psyche felt flayed, but in a situation like this where Theo was like a wounded animal caught in a trap Charlie couldn't really avoid doing so. The fact that he still had Theo there and aware was a small miracle in and of itself.
He nodded that he was listening and that he understood, watching Charlie work silently, trying to keep his stupid panicked reactions under control. He realised he wasn't having to try very hard actually, and that his attention was truly more on what Charlie was regaling him with than the work on his foot. He loved that name for a cat, seeing a teasing, frustrating note in it that he saw in the very animal itself, but the specific creature sounded like the kind of cat Theo wouldn't be able to keep away from. He told himself that he wasn't allowed animals ever since he'd 'killed' the rats, but a large part of him had always been drawn to animals ever since the Thestrals and despite his dad's best efforts and he couldn't help being drawn in to Charlie's tale.
Charlie was a lively and engaging storyteller and Theo actually found himself not laughing but chuckling a little - his foot had been tended to before he knew it, and not because he'd lost time this time around.
"It's okay, I'm sure it'll do the job." Theo assured, neverminding the pastel orange. His feet were still and he hadn't flinched or twitched back since Charlie had started telling his story. "I really appreciate everything you're doing for me." he said, just another way of saying thank you that he couldn't seem to stop himself from saying.