Kim got Not All Men'd

This is a Facebook conversation. Friend of Kim's is asking why guys insist on propositioning her (the friend, not Kim) when her front page (presumably of a dating site) says she is 'not interested in the menfolk!'

Someone replies with something.

Friend: "He was nice about it, but he kept asking when I was like 'I am not interested plz' several times. It is not that hard not to hit on me! Potential wives do it all the time, why can't dudes?"
Guy: "At least he was nice about it :) Still, some guys need to learn to take no for an answer."
Kim: "See, [straight, white, cis] guys have an over-inflated sense of self-importance, so they can keep talking about something without realizing literally no one else cares about it except them (and other straight, white, cis guys)."
Guy: "I've never felt I was important."

At this point Kim read the conversation out loud to me, because surely she wasn't seeing this--or he was being ironic, right? ...right?

Kim: "Was I just Not All Men'd?"
Guy: "That's... that's a thing? But the point is, yes."

After a few moments of staring:
Kim: "... *opens mouth* ... *closes mouth* ... *walks away*"

Apparently the guy added after this "I'm sorry. I don't usually get involved in this kind of thing, so I don't really have much practice understanding what people mean."

...I swear I have not witnessed a Not All Men encounter real time before.