keep posting all the bad things he does, then reread them. They are in black and white. Its hard to remember everything, because they suck you back in when they are nice and you forget, till the NEXT TIME they burn you.
No Contact really works, or just try as little as possible. They make you feel bad and then they ruin your day. Ignore them, have someone else listen to the messages so you don't need to hear their tone of voice (if you have kids). But least amount of drama makes your life SO much better.