"Oh, yeah?" He's trying to be relaxed as much as possible, because it's pretty clear now that they're both picking up on this weirdness, and by God, he doesn't want it to be that way between them. "D'you need any help? I've never...done anything like that, but I'm sure I can learn."

He wonders vaguely what might happen if he were to just bring it up. To ask her why things are weird right now. But that's a probably a bad idea.