I Can Overcome,
I may have missed something but I thought you said they had been seeing each other for a year, and then you said they had sex one time when he came over here, so I am not sure how many times they have actually hooked up and where. But at this point that does not matter.
Your BEST chance to stop this affair no matter what she wants is to tell the OM wife. Forget all the moral reasons why you should ( but don't really forget them), just as a self defense action the odds ( may not happen but probably will) are that if he is spending every waking moment of his life trying to save his marriage he will be a lot less inclined to want to bang your wife any more. So I hope to hell you make the damm move and do it and do not tell your wife you are doing it.
Now lets move to the bigger picture here.
YOUR WIFE IS A LIAR AND CHEAT AND DO NOT LET THIS CRAP SHE HAS GIVEN YOU ALL OF A SUDDEN MAKE YOU FORGET RIGHT NOW FOR ONE MINUTE WHAT SHE HAS BEEN DOING FOR THE PAST YEAR.
That does not mean immediately divorce her. It means you do not trust her as far as you can throw her unless you want another gut wrenching experience like you just had. One week ago even after being caught she was still lying to you under the guise of protecting you, which is SOP for WW.
You need to make sure this IC she is going to is NOT telling her to take her time to decide, because the translation of that is that you are playing the pick me game. SHE SHOULD BE BUSTING HER ASS BEGGING YOU TO TAKE HER BACK, NOT YOU SITTING THERE WAITING FOR HER TO SEE IF SHE CAN GIVE HIM UP.
Now understand her ldetting you see her work e mails means NOTHING. She can easily delete them before she comes home just like she has already done. And since you do not have OM itinerary how the hell are you supposed to know he is not travelling to her wherever she is at any time. You really going to take her word for it??????? Big mistake.
Workplace affairs are the hardest to catch and hardest to stop and monitor. In case you have not figured out where I am heading with this I'll get right to the point, and it does not matter if OM stays in that company or not.
The only way you are going to get any peace of mind is to tell her she is going to be taking a polygraph at any time of your choosing and that she better fucking pass it. And it does not matter if you even have the intention of doing it right now.
That wil put her on notice that she can try to hide whatever she wants to but she WILL get caught. This demand should be NON NEGOTIABLE!!!! If she refuses, you have your answer that she reserves the right to fool you again. She should be willing to do it any time you want to.
Your wife has NOT JUST HAD AN OUT OF LIFE EXPERIENCE AND DECIDED TO BE FAITHFUL TO YOU.
She has been caught and regrets being caught and right now she has no choice but to tell you she wants you or get divorce papers and she is not ready for that. She would have preferred to keep her family intact and have her boyfriend on gthe side and if you believe so suddenly that a lightning bolt has hit her your are making a big mistake.
She is not going to do as you say and just tell you if she wants to be with OM and resume the affair. She is going to firgure out a way to break NC on aother app or chat source as most WW do.
Your best course of action is to file for divorce and make her provev to you, not you sitting there waiting for her, that she is totally committed to you. You can stop the D any time you want to.
If you read any books by a Dr. Barry McCarthy,a pretty well know PHD author on infidenity and sexuality, he says the affair type that has the LEAST likely chance of successful reconciloiation is the "WW comparison affair", which is what you wife has been in in my opinion.
You can play defense or offense. Offense is less nerve wracking.
NOw here are a few suggestions for when she travels that others have used
(1) no partying and one on one dinners with men
(2) she tells you when she is in room fdor night, and then at some point you cvall her back on the room phone, NOT the cell phone. If she is in gthe fucking room she will answer the phone. If she has left the cell in the room to go ut you will think she is in the room
(3) she leave FACETIME or SKYPE on ALL NIGHT. You will then be able to verify if anyone comes or goes from the room. No this is not a long term thing but her WILLINGNESS to do it shows some committment.
And lastly, you need to put a VAR in her car at once and search it and every nook and crannioe of her personal space, including her lingerie drawer for a burner phone.
Now you can say all of that is too much trouble. If you take that attitude, you will be bakc here and will find out the next D Day is not any easier.