I dated one for 18mths. When we argued she would cut herself, I would go in the bathroom and there's drips of blood everywhere.
Once she kicked off with me, and said "you're not leaving this house" she would literally throw her self and grab me...only choice she gave me was to get physical...but that was a road she wanted to get me into as it fitted her agenda, but I'm very placid and tactical, so we played cat n mouse I would lure her to the back and then try and sneak out and she would run and dive at the door screaming and kicking and howling.
Third attempt was successful, I get in my car, she comes out the house running, I lock all doors, she starts punching the windscreen and screaming. I start the engine then she keeps on hand on the handle and grabs a stone with the other...my patience ran out I barely had this beemer 3 months, I floor it and the bitch comes out flying by the side of the car and lands on the floor...quick look on the mirror she's screaming face down and neighbours come out.
I went to the gym, deadlifted then picked up my mate to complain about my life whislt eating a mcflurry, it was an oreo mcflurry as I remember vividly, she's texting me and calling frantically her tune changes..."I'm bleeding to death on the bed" she says, she always used the word death. 2 hours later I go home and she in on the bed, shaking....blood everywhere, she had grazed all her arms to the elbow, legs thighs and boobs too (she had plastic ones luckily no leakage) but she was not dying at all, took her to A&E and took a while for all the wounds to heal....but after that, everytime we argued I left the house and she never tried to stop or follow me since.