I hate conflict too. But the constant walking on eggshells and hoping it can just all be OK again will make you physically ill. (Hello, ulcers!)
Record his rant, rages etc. on your cell phone.
He sounds like a narcissist, sociopath or just a plain ol' ugly person. Not your problem. Just get the proof, if possible.
Like a typical bully, he will back down if confronted.
I wish you the very best.
OH! One other thing that has helped me dealing with bullies like this is....smile and think "F YOU". I think they can see the defiance in your eyes or something. Maybe not, but might make you feel better?
I'm kind of kidding but not really.
