I also think it is MLC. Also know he never went seeking this, they were friends, and it progressed to more. I know he doesn't want me to leave, he doesn't want to hurt his kids, lose friendships ( I know the majority would kick him to the curb if they knew)but he can't seem to let her go. When she threatened they were done numerous times when he saw me, he said fine.. But somehow always got back together. Couldn't 't do it anymore with the constant contact. Told him he was killing our marriage