Sorry for the long story, but I think it could help some people to answer me.
***Beginning of my story***
On November 2012, my wife just got back to work after taking care of our kids. For 2 months, she was acting strange, wandering around the house. One night, just after we made love, she said that she was sad because she never made love with anyone else (We met each other when we were young), she was ugly, all that kind of stuff. She said cruel things to me, which led me to ask her to see an IC and also an MC. She said it was for the weak, and did nothing. At the same time, our little girl had to go to the hospital. Shortly after Christmas, her mood got back to normal. One month later however, she did not felt sad, but really distant.
I had strong suspicion something was going on, but did not want to spy on her at that time. I told myself that I would betray her if she wasn't cheating on me. Then it stopped, and I learned the truth 6 months later (September 2013). She left her Hotmail account open, and I saw a tremendous amount of e-mails from one of her co-worker.
She said she did not want to tell me because she knew it would hurt me, and said that she already started IC to understand what made her do this. She said that it went on for end of January to the beginning of March, and went 4 times to his apartment. First time they just kissed, and she wasn't expecting that. Second time they had sex 2 times, and the last time she went she said she finally realized what she did. Every time they did it, she had no intention of doing it, but couldn't say no. The last time they did it is the saddest of them for me. She said "yes" to him only because she didn't want him to be sad. I told her this was sick, it was her coworker, she didn't want him sad, but didn't care about her husband and kids? That's totally messed up for me.
She asked him that they had to stop, it was a mistake, but he eventually continue to contact her. She had to ask him another time, then he almost stopped, and when I discovered the truth, he stopped everything. By herself, she sent him an e-mail telling him again to stop contact, she made a mistake and was trying to understand what happened. I was on that e-mail too, so it was clear for him that I was aware. Then I called him. I told him that he had to back off as we had 3 kids (6, 4 and 2 years old) and that my wife had to rebuild herself, and I didn't gave him the time to answer me as I just hung the phone. He stopped making contact after that. It is disgusting me, they had been doing it while they were supposed to be at work.
My wife is still saying that she would have kept it secret. She's saying that it is doing no good that I know it, that it is only hurting me, and that she had started to change her life so it would never happen again. But I think that at some point they would have do it again. They were still seeing each other at work, she even bought the kids at work so he would meet him. She was giving him my books and movies so he could read/watch them. The day I discovered it, she was asking me how she could work with him again after their boss made a reorganization. It appears to me that she had "compartments" in her head. Work was work, family was family, and the A was the A. While one thing was going on, she wasn't thinking about the others. It is turning out there was no love in this, and it was purely mechanical. There was no passion as they were also talking about their job before and after they did it, and except one or two emails they were sending mails about their jobs too.
I cannot talk to any of my friends, we have the same circle of friends and if I want to give her a chance, our friends can't know. I find it so hard when we are with our friends, they see her as a great mother, a good wife, if they only knew... When it happens, it is draining all my energy. Last saturday, we had over 20 friends at our house, and when the last one left, I just felt on the floor. I find it hard to look happy when it's not the case, and I find it hard that I know the truth and everyone find her so nice... When I think that Christmas is coming, I fear that I will have a hard time. My therapist said that maybe I should consider that we won't go anywhere together to make sure I can go through that.
I also have anxiety, especially on Monday. As they did this on lunch time, at his place, I am something freaking out around noon, even if I know it stopped months ago. As time is going over, I feel less and less anxious. She is sending me emails 2-3 times per day, and always calling me around noon and 13h00 so I can know she's not away from work. Since D-Day, she had been writing me a letter each day, writing about her feelings, how she was sorry, how this was a mistake, telling me the next steps of what she wanted to do towards R. Every now and then, I find hidden "love you letters" saying she's thinking of me. Each morning, she's also showing me a picture that really mean something to her (Our first Christmas, our trip to Europe, birth of our kids, etc.)
She's going through a hard time on IC, and the therapist said that she had to understand why she did that in order to rebuild herself. Right now, it appears that she did that because of a lack of self esteem which is going back from her childhood. She's trying really hard to rebuild our relationship, herself and she feels deeply sorry. Her IC said that what she did is so against her values, she probably erased things in her head. I tend to believe this as she can say very precise things about what she did (Precise day, what she was wearing, what they said, etc.), but do not remember others (She doesn't remember the cruel things she said one year ago, only a vague souvenir). She's crying a lot, and something I think that she is considering suicide.
I said to her that I was considering R, but she had to be truly committed to this in order .
***End of story***
First question : I think it would help me to talk to one of my friends, but considering that we have mutual friends, would it help me, but mess our R?
Second question : Did any of you had a hard time going through Christmas time? Sometimes I think we should lock ourselves with the kids, or just go away.
Third questions : Sometimes, I think that I should call the OP one last time, only to warn him that if he ever make another contact, HR would know and that it would break his career. What do you think?
Fourth questions : My wife says that she doesn't think about suicide, but suddenly she feels that there are many ways to die. She said that she won't talk to her IC about this. What should I do?