I'd thought they were pretty upfront about why they wanted to drink with her, not tricking her into staying.

Yeah, but they're actively trying to keep her there. I think she's not ready to all-out fight them, or she's not confident she'll win, or both, which is why she takes a hostage when she does get back at them? (Not entirely sure what her goal was, though - another thing to ponder further!)

I think Xiao-ing him is cutesy, yeah, but cutesy and glib aren't the same thing at all, and I agree that he's not being glib in the slightest.