I know I am late on arrival here, but I just wanted to say welcome, and express my sorrow/sympathy at hearing of your discouraging situation. You don't want to be in a relationship where all the shots are called for you, especially if he's so angry so often and things might get dangerous.
You have heard much wisdom from other members already. I will just second that, and remind you to take care of yourself and be as careful as possible.
Hope we are able to help.
Love means never having to say, "Put down that meat cleaver!"