Reynir absorbs that, quietly. He can tell from how long she takes deciding where to start that there's a complicated history here - whether with the place in general or the time in her life she was here or the specific incident this memory comes from.

Then she mentions it being the day her horns came in, and his eyes widen.

"So you knew about them. Before the dream, you - have had horns?"

He's frowning, but there isn't any fear in the way he says it. Gradually, curiosity is replacing caution.

"Did you have horns at the party and you were covering them up and I just - didn't notice?"

He can't remember what sort of a hairdo she'd had, could he really have been so dense he didn't even notice something like that? Perhaps she'd concealed her appearance in other ways. Certainly there's no doubt that before this dream, she'd known about the horns in some way.

Reluctantly, apologetically, rubbing at the back of his neck with awkwardness, Reynir asks:

"You're... not human, are you?"

Better than just coming out and asking 'what are you' anyway.