Ok good job! Great first step here. This is huge. You've done a damn sight more than many BH's who show up here for the first time. Most are in so much shock they can hardly think straight.
Confronting is rough, because you're confronting a person you trust above all others on the entire planet. I did what is called a "soft confront" with my WW when all I had were her phone logs, and it went in a similar fashion. My WW at the time also invoked an in-home separation because she convinced me I'd falsely accused her. I believed her and was guilt-ridden for weeks, so at least your WW didn't do that.
As you already observed, you're not snooping. She can stuff that where the sun don't shine.
So she started crying because he was always such a good friend before and nothing more than a friend, just someone to talk to before until they started talking again. She said she knows what she did is wrong, and takes 100% responsibility for it. She said she'll never contact him again because she can't risk his wife finding out. I watched as she said it to him that things were done and she deleted and blocked him from facebook.
I wouldn't believe this for one second. Not one millisecond. My WW also gave me the "just friends" speech and even accused me of trying to "ruin the one adult male friendship I've had."
Be very careful here. Remember this is the same woman who struck up a sexual chat with this man almost instantaneously, and began planning for when she could receive him. Given the ease with which she did that, you have to at least wonder if she's done this before.
Your WW only did the minimum required here. She only blocked him on FB. She didn't turn over her phone to you for review. She could very well be in contact with him still.
I know the advice I was given was to contact OBS. If you guys knew the whole story you might understand a bit better (I'm not going in depth). I know it may make me seem weak, but in my head I'm taking the high road. He can live with his fears himself. He knows he was in the wrong too.
I do think you will regret this, but we can only offer advice here. We're telling you to do this based on hardwon experience and our own mistakes. I waited an entire year to contact the OBS, which was a HUGE mistake. I regret it immensely. I don't want the same for you, brother. I did this because my WW convinced me the OBS was unstable and vindictive. Please reconsider this. You can blow this up more effectively by telling the OBS, and this woman deserves to know who she is married to. As Bigger noted, it is very unlikely that things will continue once his wife knows. You'd want her to tell you if the roles were reversed. And unfortunately this is your burden to carry and you are in a sense ethically obligated. I know that's tough to read, but it's true.
When we got up this morning, she said "I hope you're happy, you got what you wanted" and took her rings off, then started crying. I of course wanted to just go and hold her but I didn't. I said "It's not what I wanted to happen, but it happened". She went to her mothers for a bit before work, then came home shortly afterwards. I'm sure her mother just loves me now too, whatever.
A couple of things here. First, good job on not going weak in the face of her tears. Most men crumble. Hell, I did. Women's tears are a very effective gambit, so keep in mind that she's crying for herself, NOT FOR YOU. Try to maintain this composure.
Second, notice what she did here. It's called DARVO. That's an acronym for Deny Attack Reverse Victim-Offender. DARVO is a classic bit of gaslighting abuse. Yes, abuse. This is abusive behavior from your WW and exactly what you'd expect from someone who is NOT REMORSEFUL at all.
"I hope you're happy?" I mean dear Lord, this is something a petulant teenager says. That's your WW's mindset.
You didn't WANT anything but the truth. You didn't get anything but a lot of sulking and entitlement from your WW. You didn't get what you wanted at all. What you wanted was a faithful wife who wouldn't sleep with other men behind your back. So you're not getting your needs met at all, now are you?
Now you know without any doubt at all exactly who you're married to, and your previous assumptions about the marriage are shattered. As time goes by, you are likely to feel the covenant itself has been torn asunder, and that's an accurate feeling. What she did is, as I said before, beyond momentous. It is an act that severs time and space itself, and that's not an overstatement. You probably feel like you've been thrust through some sort of wormhole into an alternate reality, because you have! And her reaction to this devastation is to essentially throw her ring in your face.
Third, do not let her control the narrative with your MIL. Reach out to your MIL and tell her exactly what happened. Just the facts. Not to get your MIL on your side, but to cut off an avenue for your WW to continue bullshitting people. This is important. Again this is not an attempt to get your MIL on your side. She will circle the wagons around her daughter. What it does do is shine the light of truth on this and prevent your WW from painting you in a false light.
Lastly, what about the toxic enabling friend of your WW's who was cheering her on?
P.S. Get a VAR and start carrying it in your pocket. Your WW is very unstable at this time and we've seen plenty of WW's here on SI foment false domestic violence charges against their innocent husbands. Yes, I know that is CRAZY. It is absolutely crazy. And it absolutely happens. Better safe than sorry.
Keep checking and others will be along to give you continued advice.
[This message edited by Thumos at 3:03 PM, Thursday, January 20th]