Two

One was SUPER wealthy. Lived in a literal mansion. Her dad owned multiple GP practices. She lived in the richest suburb. Her room was 2 - 3 times the size of mine. Ultimately money differences wasn't what divided us. She was dating me but said she "refuses" to marry non-jews because it's something I wouldn't understand. I thought what's the point and told her not to talk to me. She then sends me a crazy email telling me she's talked to all her friends about me and they all agree I'm terrible. I tell her to relax. She sends another batshit crazy string of texts. I tell her her new hair colour is pretty and she immediately goes all lovey-dovey again and writes me a song. Next day she's going crazy again. Ultimately she hated me for good.

Other one: strict parents. Nothing to do with money either.