Okay, so here's the kicker about tonight's conversation, the part where I really think I blew it (although I feel a strange sense of relief now): I asked him if OW knew he was married. He said yes. I asked if she truly understood that there was no legal separation or anything and that he makes wild, passionate love to me every time he's here (sorry if that's too much info). He didn't say anything. I said that I'm sure she'd be interested in the pictures of us from the pool last weekend. I said that if she understands that he's married and she's a paralegal in a family law practice (which makes me wonder if that's why he puts up with the substandard sex because he needs her for legal stuff), then surely she understands that she can be charged with "Alienation of Affection". He said it's not about her.
Oh darn, I have to finish this later. Baby woke up.