I know him well enough to know that I need to play along still. If I completely cut him off he will very quickly retreat away from all of us. If I continue to respond politely, but remain distant he will take notice. If I go too far, his abandonment issues will kick in, and it could be catastrophic.

I have reiterated to him today, however, that unless OW is 100% gone he cannot have me in his life, and I won't initiate any kind of contact or relationship. The ball is completely in his court.