We'd been together 20 years and we split up. But he had been pretty unpleasant for the time he was having the affair - I'd guessed, and then read all the old emails and saw all the details. And although we had got on fine as husband and wife, looking back he was always doing his own thing. I thought he was a workaholic but actually he was just leading his own separate life and not that into the home or family. So it wasn't a hard decision to make, to split up, even though that time was awful, and I had just the same feelings of everything being turned on its head.
This was 5 years ago when I was 45, and since then I've had a bit of fun with new partners. Not looking to settle down again yet, but there certainly seem to be plenty of other people in the same boat as me; I don't feel like the odd one out in a game of musical chairs!
I've got myself a new place, made some changes in my life so that I have more support and things going on, and actually feel a lot better about myself; the fears about an unknown future have dissipated.
And after a couple of years the intrusive thoughts, anger and fears settled down and we managed to divorce perfectly civilly. Now, when we meet up, I can sometimes remember why I married him in the first place. Don't want to get back together, but the raging anger has certainly gone.
From this place, I can start to understand why some people stay with their unfaithful partners. But I don't think I'd have got to this place if we had stayed together.
Some people divorce and then marry again years later. The decision you make now isn't necessarily irreversible. One thing that has helped me is to give up on the idea that I know my future; to accept uncertainty.
Do whatever makes you feel happier.