Sorry to hear you are going through this. Hang in there Alan. My W is currently involved with OM right now. It has been EA/PA as well. I understand where you are coming from. The best thing you can do is give her the time an let her do what she is gonna do. You can't control it. If PA is a deal breaker for you then that's understandable, but I would give yourself a few months of time and space away from W to really make that decision.
I must say based of your situation it would be a deal breaker for me. If I would have found out W easing having an A while we were together I don't think I could ever forgive her. In my situation my W began with other man about a month and half after she filed for D and we were separated. So I don't see it as being in a "committed relationship"
Having said that, I am not going to wait around and try to work in my M while she is involved with someone else. So I'm doi by best to move forward and focus on me.
This is the hardest thing I've ever had to deal with!
You will get through this just like me one way or the other.


M 37 W 30
S 7
Together 10 years
Married 9 years
BD: 12/12/12(W filed same day)
I moved to apartment 1/11/13
W and S moved to MIL 1/11/13
Peicing: 6/3/13
Reconciled: 7/2013
BD2: 4/20/16
still working on it