Even without a toxin in his body, there's forever an instinct telling him he's a bother, he's too much work, Jason doesn't want to be here and if Tim doesn't want him to actually leave, the way to make sure Jason's not driven away is to stay quiet and not impose. He could tell Jason he doesn't need anything, just someone to keep an eye on him, and he could work with that, maybe. He'd manage.

And yet.

He can't bring himself to say it, but he untangles one arm from his cocoon to reach out to Jason in a silent request for... anything, even just hand-holding.