I know it hurts to read some of what you see here but unless I missed something all of it has been "constructive". You might not like it or disagree with it but trust me it's "constructive".
Maybe I'm wrong but it seems you have more anger to certain posts on your thread than you have for this piece of shit who fucked you over (and your wife) who both have blown up your world.
So your wife, KNOWING how much this has all DEVASTATED you, and you specifically conveyed to her (before the trip to Dallas) that any interaction with him moving forward might "DESTROY ME COMPLETELY".
You learned she lied about him not being in Dallas.
Now you learn she emailed him saying "I MISS YOU"????
That she "MISSES THEIR FRIENDSHIP"??
Her marriage and her family is literally hanging by a thread and she sends this?
Your wife keeps showing you time and time and time again by her ACTIONS (NOT her words) that she isn't remorseful and is in NO WAY SOMEONE WHO COULD POSSIBLY BE OFFERED THE GIFT OF RECONCILIATION.
Further she knows she can do whatever she wants because you won't draw a line in the sand where if she steps over the line there's consequences to suffer.
Better yet she steps over it and you act like you're all upset but then you move the line again to accommodate her so you do NOT have to take any actions and she KNOWS this.
"I don't know where to go from here" you now say?
I call bullshit on this because you do know you just don't want to take the advice from everyone on here who have given you concrete things you could be doing to potentially save your marriage (or at least get you out of infidelity) and you have flat out ignored all of it.
Your situation is "unique"?
NO IT ISN'T!!
Your wife is "different"?
NO SHE ISN'T!!
As people on here have been trying to get you to realize some of the details might be different but at the core of what's going on with your lying cheating wife is what everyone dealing with a CHEATER has dealt with.
People see you in pain and we're trying to help you but you keep slapping the hands away and are basically taking the knife out of your wife's hand that she used to stab you and now you're stabbing yourself with it.
Can't you see this??
It's NOT people bashing you or blasting you or offering you bullshit advice and critiquing things you're doing and not doing it's people (WHO HAVE NOT JUST LIVED WHAT YOU'RE GOING THROUGH BUT GOT THROUGH TO THE OTHER SIDE) who have gotten out of this NIGHTMARE called infidelity to get to a place of peace.
Sooner or later you're going to have to pull your head out of the sand and come up for air and realize the REALITY of your situation.
It's like an alcoholic FINALLY admitting to himself that he's an ALCOHOLIC. He actually utters the words..."I AM AN ALCOHOLIC".
It takes ENORMOUS COURAGE to say this!!
Only then can you start to see what the problem really is and with help to start to navigate a road to healing and peace.
Masters...until you get to the place where you can utter the words (and know in your heart) that your wife and this piece of shit other man have had SEX and NOT just "kissing" that you've been telling yourself this nightmare is going to continue.
Right now instead of a marriage built on trust you have both of you LYING to each other and yourselves.
Until BOTH of you get real this sham of a marriage (that you've stated has been on the rocks for quite awhile) is going to continue and those kids of yours are stuck RIGHT IN THE MIDDLE OF IT.
If your wife is NOT going to wake up and get real how about you???
One of you NEEDS to do this for your kids for crying out loud. They do NOT deserve this nor to be treated like collateral damage (which your wife's actions have made them).
So now you can't get anything off her phone.
Go figure.
The question is what are you willing to do?
As I see it you can:
1) rugsweep this and do nothing which will over time destroy you and you'll implode.
2) make her take a polygraph to prove her innocence but more importantly to see if she's willing to do WHATEVER necessary to save her marriage and rebuild trust with you.
3) or just file for divorce now and see if she's willing to fight for her marriage. It will take awhile for the process to play out and if she wakes up and starts showing you by her actions that she truly does want to save her marriage and family well you can always stop the D.
When are you TRULY going to get ANGRY??
Why haven't you BLOWN UP this piece of shits world by already finding an attorney and going after this man and the company he works for?
I know you'll take this as blasting you and that's fine but for crying out loud when are you going to man the F up, get PISSED off about what they've done to you and your kids, and realize what you've been doing is NOT WORKING SO WHY NOT TRY SOMETHING DIFFERENT??
Insanity is doing the same thing over and over and expecting different results.
If you're not going to do it for you do it for your kids!!
You can tell me to F off and that's fine but you're in the fight of your life and you've shown up with just your fists where your opponent(s) brought AK47s.
I hope you stick around Masters.
Please don't get defensive.
Trust me all of us made a lot of the same mistakes and all we're trying to do is pass along not just our experience but the specific actions you can take that will help you get out of this nightmare.
As Bigger says, it may save your marriage or it may lead to divorce but NOTHING is worse staying in infidelity and the fallout from betrayal.
Praying for you and your family.