[And here he stops, and gives her a look that's not so much accusatory as puzzled, a squint like he's trying to figure out if she's faking him out for laughs or what. Except he's not seeing anything like that, which is honestly very weird.]

You're not joking. [A confused pause, then a shake of his head.] Okay, well, now that I totally look like a crazy person... I promise I'm not like, off my meds or an escapee from the insane house or anything like that. And I dunno, I can explain if you want or we can just drop it, but either way we're still kinda stuck.

[Mostly he's just hoping she doesn't try to deck him and run off now.]