I dated a girl who said her x hit her. After a few weeks I understood why. I bailed on that relationship damn quick.
Some women just insist on pushing things to the edge.
Others just insist on being in a relationship with someone they know is a violent thug.
My sister is a complete nut and I got in a fist fight with her when I was 11 and she was 19. She would pick, pick, pick at people until they explode. Her husband of many years finally had enough one day and decked her when she slapped him. Broke her jaw. I had seen her picking at him earlier in the day and was subpoenaed to testify. I ended ip admitting I would have decked her, too. He got some sort of lesser offense and no jail .