[Smelling like other people isn't really much of concern, aside from she will now know there is a connection should she ever meet the people matching the scents. The fact he also goes on guard is a tad suspicious, but it seems more in response to his uncertainty or worry about...her reaction.

Again, a fairly normal behavior from a fairly normal person, despite the strange circumstances he's found himself in, at least to her senses.

She turns back to the costumes, if only to distract herself and shield how she is gathering her thoughts.]

So, this place is not only haunted by lost souls, but the living beings here cannot join them, despite experiencing death themselves.

[Purgatory perhaps? Or was her previous assumption wrong and she had somehow ended up in Hell.]

Seems like a twisted game.