Yes, it lasted two years. I had a couple of boyfriends throughout. OM had a wife. I knew him previously. We shared a social circle-though I didn't know his wife.
It was something we both got into after a drunken night out and continued. It was about fun, laughs and yes sex, which actually became less important.
In essence we were couple, albeit in a different city every few weeks. I was going through a bad time, but it isn't an excuse. I've actually never admitted that part before.
I wasn't proud of myself but quite honestly I just tried not to think of who we could hurt- well we wouldn't would we, noone would know?!
We finished it on numerous occasions but to become a complete cliche, it was no longer about the sex, we wanted to be together. It wasn't an option and we finished for the final time.
OM then left his wife. Not necessarily for me, but because he didn't want to be there.
I finished with my not so serious boyfriend. We did get together and it all came out. Without a doubt, as someone alluded to earlier, the telling family and friends is the most shameful I have ever felt. Still do.
We are still together and happy. Ex wife has married and had twins very quickly.
She still wishes us both dead. So who knows if she is happier now. I can't even begin to imagine what we did to her.
I know my DH is so much happier now, and for want of a better word, relieved that he did it.
I'm certainly not proud or boasting. I still feel dreadful three years on, and some friends and family still won't speak to us.
We are both very happy with the (selfish) outcome but not how we got here.
Not sure that helps you, sorry OP. Yes we kept the affair secret for as long as we wanted and yes there were some amazing highs and lows. It did exactly what it needed to at the time and I don't regret it. The hurt afterwards (which in this case, we 'fessed up and didn't get caught) was, and still is, awful.