Anyone who threatens to hurt you physically is not your friend; you are not obligated to stay with him through his “anger issues” at the cost of your own safety! My advice would be to end the relationship and cut off contact with him.

Don’t believe in the lie of “trying to change a man” for the better, jerks will remain jerks no matter what you do! I’d rather be with a mature, rational adult than someone who is out of control and possessive.