How did your "crazy ex" become your "crazy ex"?

Thought she was crazy as a friend, became a crazy girlfriend, and now my psycho ex. Dated her, she was a pathological liar and was manipulative. Said she was raped/had an abortion but never told any of her close friends, somehow I was the first. She barely had any friends, only about 2. She was very clingy, high-maintenace, superficial, and drama-oriented.

Cheated on me with 2 guys, one brought her roses on her birthday to my house.... Second one she cheated on me with the night of the birthday, led him to believe I was just a friend. After her efforts at trying to make up to me and telling me its over with all of them. She slept over like usual, next day I get accused of inappropriate touching... All I recall was her having a bad dream and I comforted her and held her hand while we slept, till she moved away and pulled my arm over her... Unsurprisingly as that unfolded, I get death threats and other verbal assaults via text from the guy she cheated on me with at night. I ended it with her and she was left confused why. Month later she "accidentally" ordered stuff to my house --> drunkenly came over to cry on me and try to kiss me Month later tried to hang out, got coffee with her to talk --> lead to a heated argument in front of my house of me telling her my side of everything to counter all the bullshit she spits and her realizing I am right and backing down.. Month later talking to me saying her depression is back --> help her over the phone, turns out that guy who threatened me doesn't like her anymore now that she likes him... Ended it here on the phone and haven't looked back since.

She tried to lure me back with a giant essay text talking about how I was so unique and special to her, she's never felt so happy with someone till me. She's sorry that she fucked my life up and almost messed with some of my plans (college etc.)

She called me 10 times at 3am a week before my birthday - somehow slept through that lol

Saw her friends and her for the first time a week later, she walked past and ignored me with her phone while her friend said Hi & Bye

Fun Stuff: first relationship happened to be one of the worst I could have so I guess I got that out of the way?

/r/AskReddit Thread