First serious boyfriend, much older:
Guilted me heavily about having pain during sex when I was a virgin and obviously, on some level, was not feeling comfortable.
Angrily accused me, re. the above, of having been raped and lying about it, therefore exposing him to risk of STDs ("I licked your cunt! I could have caught something!")
Didn't stop when I was in pain, then shamed me about that.
Threatened to cheat on me if I went home to visit my family for a week ("Go if you like, but I might meet someone while you're away ...")
Shamed me because I walked across the room to talk to him at an event, thus cramping his style.
Told me he'd cut his hair short and shaved his beard to test me, because he thought I was only with him because he looked like Che Guevara. Didn't have the heart to tell him he actually looked like Super Mario.
Sent me a long email in ALL CAPS after I left him and moved abroad, asking me to write down all my memories of our relationship in a book and give it to him for his birthday so that he could enjoy remembering how he "made me into a woman" despite all my "little tantrums". I wrote back and said that I could write it all down if he liked, but he wouldn't enjoy reading it much. Of course, this was just more proof that I was difficult.
Stuck with that arsehole, on and off, for a year and a half. Why.