I know she'd probably attribute it to her asexual-uwu brain, but I think this is a really good example of Stapph just legit not understanding how people work (and consequently, why people find her annoying). The dude says he's drunk, she's pretty (so yeah, he is DRUNK), and even she says outright it's desperate horny thirsty dude looking for some sort of outlet for that.
But then she tells him 'I don't date dudes' and he stops talking to her (at least for a while, if later post is to be believed). And somehow her takeaway from this isn't the really obvious one--that he was looking for someone he could talk into a fuck with minimal effort because he was drunk and horny--but that instead he's... intimidated by her hellgender? That 'his dick can't handle an attractive person outside the gender binary'?
It's so strange that she let's like ninety percent of the way to the logical conclusion and then leaps off in another direction entirely. Wouldn't this be the dude respecting your statement that he wasn't compatible with your preferences? Wouldn't this be, idk, the decent thing to do if he's just looking to smash and doesnt want to waste either of their time?
Seems like a pretty nice upfront dude, shame she's choosing to just be disappointed he doesnt want to just bask in her attractive presence.