Well, that's good enough. He sounds like he is alone in there, if nothing else. That prevents some issues, at least. "You don't look like a fanatic and are sentient, so there's as big a chance that you explode as everyone else ...is there?" The worry that he might explode hadn't even occurred to her until now. Why would people think that?

...As for what upset her... Well, if anyone can be trusted with her worries in this place, he might be a good candidate. He seems trustworthy enough and more than that he quite clearly doesn't belong to this place, either.

"It's ...incomplete. There is no matrix and no astral plane." Or at least she cannot access either, which would be equally worrying.