It always takes two people to tango, he's confrontational,what role are you playing? Since you can't do anything about his behavior,(directly)
why not look at yourself and take responsibility for the part you've played in this drama, adress those issues,and see if it helps.Of course you'll probably need help to see these things about yourself
since few of us are that objective.Its hard work,but its a wonderful journey to self discovery! (take it)