Thank you all for your encouraging words.
Well, I did a bunch of "detective" work so to speak. Casually talking to people who I know who were around then and have no reason to bullshit me. Last night I had a long talk with the wife about the whole thing. The whole conversation was calm, factual, and unemotional. I consider this a success. I've come to the conclusion that she really didn't cheat on me, as she didn't hook up with this guy until a couple of weeks until we started talking again. Still kind of pissed she screwed this guy to begin with, but in a way I think her trying to hook up with someone to forget me drove her back to me. As well, she never went back to him, that I've verified with 100% confidence.
So we talked about what happened and why she left to begin with. There was a lot of pressure from her family, we were taking care of her 9 year old cousin who got taken away from her aunt by the state. We couldn't be a couple because of the rules set down by the state, and we were both bitter. I guess it was just too much for a barely 18 year old girl to handle. I will add that sense we got back together, she has been more than loyal and dedicated to me and our kids. I really have no reason no to trust her, just scars from back then. It hurts that I was the last person to know she was pregnant. As well it still kills me that she screwed that piece o sh*t. I'm letting go……
I've got to work on my feeling inadiquate now. I've always felt small, but really didn't care because she had no comparison, but knowing he was way bigger. I must be her largest, it mindfucks me knowing he touched places I haven't.