I consider myself a surviving BW in R. D-Day was 25 months ago. I don't consider the survival complete. R is a work in progress, and despite some hiccups, has been going very well. I think we'll make it.
My FWH was in an LTA for 9 years. To be honest, it might have been more like 10, since the year preceding the A he and OW had been meeting for lunch. Talk was allegedly work-related rather than personal, but the bond was forming. If you've read Not Just Friends, it was a classic slide down the slippery slope--two work colleagues who got along well and then crossed forbidden boundaries.
(I will add that we were also couples friends with OW and her H. Before the A and all during the A, we would visit each other's homes and do things together (sailing, concerts, restaurants).)
The day my H announced his resignation from his job and said that he would be taking a new job in a city 2.5 hours away, OW took him out for drinks. He actually called me to let me know, and I thought it was fine, and quite normal for a close colleague to take him out in that situation. What I did not know at the time was that after the drinks and conversation, they hugged in the parking lot and then kissed for the first time. A month later, on his way back from renting an apartment in the new city (I couldn't go--other obligations), he stopped at a motel, called OW, she came, and they had sex for the first time.
After we moved, they would meet every 2 months or so at an intermediate city for lunch and sex. They would also have sex at conferences--those came up about four times a year.
What really puzzles me is that, despite their obviously close bond, they would never spend the night together at those conferences. Usually, he would go to her room, they'd have sex, and he'd leave. Their lunch trysts were lunch-and-sex or talk-and-sex. Then get up, go home. It's kind of pathetic, really.
The e-mails from OW show that during the last three years of the A, she was pressing him for a more intimate relationship. She complained that he only talked about work-related topics. For the last two years of the A, they (at WH's instigation) decided to stop the sexual part of their relationship. They both were feeling some guilt by this time and decided to have a relationship that was "appropriate". It was not, however. They kept having secret e-mails, secret Skype sessions (when WH would go to the office on Saturdays "to catch u up on work"), and secret lunch dates. OW kept complaining in the e-mails (and phone calls) about the lack of sex.
I was certain, when I confronted him, that he would choose OW instead of staying in the marriage. But he threw her over so fast, and agreed to my terms for continuing the M, it made my head spin. He showed immediate remorse (and very deep remorse at that). He's been doing really well and has been a better husband than he has been in many years.
But to tell the truth, I am still not over the fact that half our marriage was a sham. I look at pictures taken during the A years and I just get very sad. All those lovely vacations--a British Isles cruise, Nassau, Mexico--and he was just itching to get back home to f**k her. (But we were having plenty of sex during those vacations!)
One way I am dealing with this is to look at FWH almost as if I'd just met him recently, as if he's a new person in my life. Because in a way, he is. I love this new person dearly. He's very much like that person I married 19 years ago.
What devastates FWH is that I ever seriously considered leaving him. (I mean, duh! He cheated! Of course I considered it!) We were talking about where to retire last night, and I mentioned having looked at housing prices near where my oldest daughter lives. I added that I had researched them two years ago, right before D-Day, "just in case I found myself alone." He looked as though I'd punched him in the stomach.
So, forgivingishard, it's a long, hard road. I don't know how I'm going to get over the lost years of our M. It helps to focus on the here and now, though. Which is not to advocate rugsweeping, or not feeling free to ask questions when they arise! Not at all! But once the details are out and R has begun, focusing on the present and looking towards the future are the most helpful things, in my opinion. But only if you have a very remorseful spouse who is now deeply committed to you and the M.