How to Stop....?

My wife had an affair on me and I had found out about after it had ended. She has told me hst she wants to try to work on the marrigae and I said yes but I cannot stop throwing it up in her face all the time. If you have experienced this what have you done to not bring it up and keep quiet and work on the marriage. My wife quit going out to clubs and has been staying home. I really want this marriage to work out...