You think after telling him over and over he should understand your point of view but most likely he does not. Most people who don't work on themselves act out of instinct and aren't aware of their surroundings. If he has done nothing to your knowledge to work on his anger, beware. You can say you are going to work on things, you can try to hold yourself back for a while until it gets uncomfortable. I am not trying to put anyone in a bad light, but you have to protect yourself from harm. Stay positive, focus on his good qualities. Practice gratitude! Hope things get better!