I'LL START!
My ex in HS and I had been dating for 3 years when he went to Cabo for Spring Break. I had a bad feeling the whole trip but he swore up and down nothing happened. Fast forward six months, some random DUDE messaged me on fb and informed me that my ex bf and his best friend had forced some blacked out girl in cabo to give them both bj's. This guy happened to make friends with my boyfriend on the trip and noticed his relationship status when they became fb friends. He also informed me that he witnessed my ex doing a little something with his fingers to a girl on the dance floor and then decided to wipe it on one of his other buddies faces, horrifying. I broke up with him as soon as I found out that night. He was wasted at the time, he threw a lamp and a pillow at me and told ME that I ruined HIS life.
Your turn!!