OMG - your H is a child! What is he thinking? Has it always been this way or is this a true ML thing? I mean WTF? Don't be a doormat. Tell him that contact with OW must stop, he must begin accounting for his whereabouts, he must begin to see a MC if you aren't already. He must take responsibility for either staying in the M or going not in between.
You are worth more than this kind of shabby treatment.
