Well This0is0Fine, you have your answer.
Now the mind games begin. Be ready. Follow the advice here. Be strong and imperturbable.
Right now, the OM is most likely wondering what he got himself into. All he probably wanted was a little bit of strange on the side, now he's got a woman who's expecting more out of him, and he's probably nowhere near ready to handle his new "responsibilities". He's dealing with his own "OH Shit!" moment.
If you do as you should, a rude awakening is coming to this woman who slaughtered your loving wife and took her place. This loathsome human being deserves NOTHING from you. No hatred, no sadness, no worry, no happiness, NOTHING. You'd best set your mind to treating this woman like a stranger, or she'll take whatever emotional cracks in your foundation and exploit them.
It's harsh, but it's true: The person who emotionally detaches after a supreme violation of their trust, doesn't need any more evidence. You don't need to find texts saying "Great fuck last night. Thanks!". Her actions are proof enough. She needs to be treated as she deserves, as the dishonorable backstabber that she is. She thought that you'd do the hard work of maintaining a loving relationship, while she put out for the fireworks of a shallow romance. NO! NO! NO!. She can get 100 percent of her needs met by the OM now, instead of leaving you with all of the dirty work.
Do the 180 immediately and shock her with divorce papers. The sooner the better. You're not taking any more crap from someone who dishonored herself in the most vile fashion.
If you're thinking "what if this makes it worse?", then remember, it can't be worse. You can start the divorce process, and if through some miracle, she realizes what she's done and shows TRUE remorse, then you can always delay or halt the divorce process, otherwise, you're one step ahead in getting away from someone who could cheat on you and lie to your face about it, whoever this woman is who destroyed your marriage.
When anger or sadness arises, put on your man pants and become an impenetrable wall. She no longer deserves to be privy to your deepest emotions. Like a stranger passing you on the street, she needs to see that she's nothing special anymore. Do the 180 and fake it until you make it... or suffer far more than you already are.
Get tested for STDs, as has been mentioned. You need to know, but even moreso, she needs to know that she's gross- potentially infected from her dirty deeds, and that you're not going to suffer for that. Go ahead and let her know, in passing, that you're getting tested, with the cold, hard, clinical, lack of emotion that is akin to cleaning up something particularly nasty. She's dirty... filthy, and she touched YOU.
When I think back to when I caught my wife cheating, tears well up in my eyes to this day, not because of what she did, but out of the joy that I feel for the people here, who helped me find my way before they even knew me. LISTEN to them, but more importantly, DO as they advise to the best of your ability. You will probably stumble a few times, but shake yourself off and move forward again.
[This message edited by Fife at 7:25 AM, December 12th (Thursday)]