Well. I have two stories here.

First, a man I dated ended up raping me. We had met my freshman year of college and became friends right away. He was quiet, awkward, withdrawn while I was very social, outgoing, and enthusiastic. We had a lot of common interests and honestly I found it a bit of a challenge to try and get him to open up. I brought him into my friend group and despite some pretty obvious warnings (hindsight is 20/20) a while later we began dating. He was incredibly verbally and emotionally abusive. He constantly compared me to another girl he found attractive, saying I should be thinner like her, act less like a slut, I wasn't very smart, etc. After some gentle nudging from my other friends, I broke up with him. Since I had brought him into our friend group, I couldn't exactly avoid him but he began turning them against me one by one. I didn't even realise he was the cause because he told me it was my roommate spreading rumours and lies about me. I dumbly believed him. Fast forward to our sophomore year, I had a new boyfriend who I was crazy in love with. I still was trying to be friends with my ex even though he was very obviously jealous and tried to be possessive of me. He even send my boyfriend a friend request on Facebook and tried to drop subtle hints about why he should break up with me. Before I had the chance to find this out, my boyfriend and I got into a huge fight. He decided not to come over that night. So I got drunk and started messaging my ex. He came to my room despite my protests and waited til I passed out before he raped me. Afterwards, going through the reporting and everything, he was cold and malicious. He told everyone I was a liar and I had begged for it. He was incredibly manipulative. Looking back, I realise he was that way the entire time. I wish I had seen it sooner.

Second, there was another guy I knew through mutual friends during college. We had hung out together several times in groups and at parties. He was pretty cool in small doses. If you were around him for too long though, he became very obnoxious and inappropriate. He made snide comments about girls and their sexual activities. He would critique a lot of girls' physical appearances when they weren't aware. And he had a fairly quick temper. At parties, he constantly tried to get girls to make out with him or with each other and there were quite a few times he was caught watching people in intimate moments. A few years later, he was reported for raping a girl with another guy. From what I heard, all three had been drinking and the guys made moves on her. She didn't immediately say no but then she did and protested. The other guy stopped and assumed the guy I knew would as well so he went back to the party. The guy didn't stop though. When it got out what had happened, nobody was really surprised.