Whether he's in MLC or a WAS, you would apply the same strategies. The more you point out the things that you don't want him to do, the more he's going to do them...why because he doesn't want you to tell him what to do. You are acting like his mother and/or authority figure.
Don't argue w/him. Walk away or say something like, "when you calm down, I will be more than happy to discuss the subject w/you and then walk away". He's getting his ego kibbles each and every time you argue w/him and that's just making him one huge happy man because he knows he's getting to you and yes, it justifies even more why he's separated, etc.
Choose your battles. Go back and re-read the detachment thread. Even though you have to interact w/him because of your child, you can still detach from his drama a little at a time.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
