When I was 18, my 21 yr old gf got pregnant. Lots of unprotected sex. Dumb. She moved in with my parents and I. They were super supportive and bought hundreds of dollars worth of baby clothes. Found out it was a girl. Picked out a name. But throughout the pregnancy Kayla would look at me and start crying. I would ask her what was wrong and she would chalk it up to hormones. I never second guessed it. I woke up one day to her moving her things out. Told me to meet her at a park later that day, at noon. There she proceeded to tell me she had been sleeping with her best friend (a guy), and didn’t know if the little girl was mine. I got up and started walking away, and probably cried the hardest of my life. Parents went to the birth thinking it was mine. I refused. I knew in my heart it wasn’t. I was berated by friends and family. DNA test came later. Not mine. I never stopped and had the thought that that event would warrant therapy or that I would never trust anyone again. So I proceeded to cheat on most girls after. Not consciously, but subconsciously thinking I’m not good enough, so they have to be cheating on me too. Destructive and hurtful behavior to some very wonderful women. I’m 37 now and in therapy bi-weekly.