Nothing particularly noteworthy, or at least nothing bad? I don't think so, anyway.

[Now he's second-guessing himself, going back over his previous activities and interactions, but aside from the awkwardness with the rooming issue he doesn't think he's upset anyone. He's pretty sure he didn't. He hopes he didn't?]

Ah, yes, that would be a worrying issue. Has this person done something in particular to make you doubt them, or is it more of an intuitive concern?