I’ll start.
We had great chemistry but different goals. She was religious and looking to marry and thought she could change me, a non-religious person who intends to remain unmarried and childless. I was up front about the lack of religion and the lack of desire for marriage. She was not up front about her intent to change me.
After two months of regular flings she told me we couldn’t see each other anymore, because she wanted someone to go to church with, it was my fault she was living a sinful life (totally), and she was cheating on me with another dude was a Christian.
Last time I was in a “relationship” with someone we talked for a few months, he ghosted me, then I found out years later he was a pedophile fantasizing some weird shit about me. Worst part is he’s now infamous and is widely joked about in one specific community for a thing I’m into so I have to hear about him all the time. My stepdad had the balls to bring up the whole thing during dinner once and holy shit that was uncomfortable.
Still haven’t recovered from that.