> I didn’t realize this was a known thing, that every man being nice expects sex with you
There’s no telling if that was actually the expectation of the man described - this is her assumption:
” One of my more astute and experienced friends told the man that I had a boyfriend and had no intention of being intimate with him. He became irate and threw a lit cigarette into my hair as I left the bar. “
The chances that it actually went down like this, without significant intervening conversation and/or events, are zero.
She is leaving out all the parts that would expose her bad behavior while pretending to be a victim.
She was a child. High school girls like to pretend they are grown up but they do not have the experience and social awareness or even wisdom to act properly. She was feeling mature in some dive pool bar.