It's fine, no need to apologize. [ Even though she knows he's just doing that since that's exactly the kind of person he is. ] Not like anyone would expect you to have to know what's going on when this whole place is just weird.

Although I guess it's a little concerning.

[ Even though she says it casually. But she does mean that - it's concerning if not just because this is about him, and she wouldn't want to wish anything bad on him. Disappearing into nothing for a while? That's.. definitely in the bad category. ]