My W gave me the exact same lines...I've been a horrible monster, you deserve so much more... Whether or not it is sincere, it does not matter. It is not enough. As Sandi tells me, it is proven they know what they are doing and are wrong, but continue to do it anyway. It [censored]. But it sounds like you are doing all the right things, except I would say you are still way too available to her. She can call you drunk and you run right over. You have to get respect back and make it clear you are not going to tolerate the affair. Right now, it's almost like you're condoning it. Believe me, I get it, I just don't think your sitch is going to change until you do this 180.