I have to put the same 2 cents in that everyone else has. Don't contact her. She doesn't care. My H had an A about 6 years ago. I didn't contact her although it took everything I had not to. Since she lived in another state (5 hours driving time), my friends said.....maybe she doesn't know he's married. I found out that in fact she did know. She just didn't care. My H gave her everything she wanted & took her places. Why would she care....she's never been married, was getting what she wanted and didn't know what it felt like to have her heart ripped out.
Anyway, I suspect my H is having at the very least, an EA now with a former co-worker. We've spent time with her, her husband & their 4 children. I'm livid that another married woman would do this. I'm mad at my H for doing this when she has her own family too. Her husband is a great guy. I often think back to our conversations wondering if I ever said anything that she would have twisted around and said something to my H. Trust me, it's taking everything I have this time not to call her. I know that contacting her would completely blow any and all communication & relationship that we have.
ME: 42, H: 42, D6 Together: 18 yrs. Married: 15 yrs. Attended Retrouvaille - December 2009 Status: Working on it day by day