It certainly gets his attention. He didn't exactly keep track of who Astrid talked to, but he hadn't expected her to dance with someone even if they were a friend of hers from here. What made it more baffling was the fact that it seemed like the person she danced with was a stranger.

...Color him curious.

"Oh yeah?" Subtlety was not a viking's strongpoint, and it definitely shows. "That's good... That you had fun, I mean. Yeah. Uh, so who with?"