Run far, run fast.
My own biases might be showing, but to me, from what you have said here, she has basically just used you for years, doesn’t support you, doesn’t want you, and now that you’ve helped fix her, she’s ready to fuck some other dude?
I genuinely don’t know what I would do in your situation, I have an idea and it isn’t from a good headspace.
So run far, run fast.
Cut tumors out before they grow larger.
So my understanding of it is that one person who has a lot of followers made a video using the word in an arguably improper manner, a bunch of other people making more videos more or less using it ironically to make fun of it, and then a bunch MORE people just started using it completely wrong because it’s been a game of Shitty Telephone from the people who used it correctly (first persons teacher, or a book somewhere) and the end result makes absolutely no sense.
Or, if you will excuse the slanted metaphor, “Ai learning from Ai”