You read the infidelity chapter, find the reason the A started and see what was missing in your R. She is getting something there that she isn't getting at home. Affairs start for a reason, and you need to find it.
Are you talking about the affair? are you talking about the OM.
My wife tells me everything the OM is doing for her. No sex details, but what she is missing with me, and what she is getting from him. I will use this to better myself and then when the time is right I will use this to change in the more intimate ways.
M-31 W-25 S-1 1/2 bomb dropped 9-01-06,and repeating over and over "I, not events, have the power to make me happy or unhappy today. I can choose which it shall be." Groucho Marx.