What efforts have you made to help his situation? He probably needs counseling. Since his anger is the only problem, my dear go on your kneels and pray about it, as well as seeking help for him. The good qualities you listed up there are rare to find.
Also look at what you are doing that triggers his temper. May be you need to slow down on certain things, or may be you need to avoid arguing or some other things you need to avoid. DO NOT WALK AWAY.
Remember, the grass is always green in the other side.
