Q&A I Love Her, Why Did I Cheat on Her?

My wife and I have taken EMSO and are doing the Married for life. We are 18 months out from D-day. My wife still struggles almost daily with feelings of intense insecurity about herself and how I could have done this to her. Before she even knew about the affairs she would tell me that she never felt good enough. That has increased 10 fold since discovery and I seem to just be making it worse. I know she is grieving for what was lost, but I’m not sure I feel or even understand the grief she feels. I am not good at showing my emotions. She disclosed the other day that if she chooses to leave the marriage it won't be because she does not love me or she is not willing to forgive me it will be because she can't stand the way she feels about herself in our marriage. I don't know what to do. I caused this, but I don't know how to repair the damage to her self-esteem. I tell her that I do love her and lots of positive things, but it does not seem to help. She says if she was all these things then why was I so willing to cheat. I don't have an answer for that. Do you have any suggestions?