Something you could do, perhaps, is refuse to listen to him process his emotions about the other woman. You're not his best friend, you're his wife - and it's incredibly disrespectful to you for him to talk about her and assess the future prospects of a relationship with her, with you as the listener. He probably does need to talk about these things - he probably is emotional and messed up. But what is what therapists or for. You could refuse to listen to it.