I just found out that my girlfriend cheated on me. This has happened to me twice in a row now. I got cheated on in my last relationship too and I took me a long time to trust somebody again but oh well, I was wrong. I feel like I can't believe in love and relationships anymore, I've gotten too damaged. She didn't even apologize, just ghosted me after dating for 2.5 years. What did I do to deserve this?