IMINTROUBLE, S's in affairs make very poor decisions (or they wouldn't be f'ing around on you in the first place!). They seem to be oblivious to the feelings of the injured party and want to act as though nothing has changed. You are her friend, believe it or not. She turns to you because she always has. I think they blot out their guilt and carry on. It's kind of like the alcoholic where everyone else can see what their behaviour is doing to their lives but they have no clue. This is similar. Anyone with a brain can see why discussing her lovers situation with you is inappropriate but she can't even entertain that idea. If you are uncomfortable then tell her "I'm sorry but I don't feel comfortable discussing that situation but I'm very open to discussing our situation anytime you want to." She's being selfish and insensitive which is par for the course. Remember though she talks to you because you and she still have a bond. That's good. But, be selective on what you allow her to discuss. She just ripped your heart out and stomped on it. You need to set the limits here. But, as always, do what you feel comfortable with cuz you have to live with the results, not me!! Hang tough.