Mine's the same. I tell him what upsets me, or what triggers he is providing, and he changes for a day or 2, before going back to his old ways.
I've tried to teach him about BP, but it's not easy. I also told him that he's the rock in my life and that I need him to be there for me, and to keep me stable.

I try show him I'm angry without getting violent, and we've agreed that when I need time out, I go into the spare bedroom. When I really cannot cope, I just take 2 sleeping tabs (Or whatever you need) and I go to sleep. It's often when the anxiety comes through that I am most aggitated. It is then my fault (Well, I do have BP, so it's not technically my fault) and I allow myself to sleep it off and just get away from him, because it's not fair for him to go through.