Re: ONS Couple Years Ago-What to do?
I think it's possible to get over cheating, especially if it's a one-off event. But it doesn't mean it's easy, or even that you should do it. Some people just aren't cut out for 'getting over it.' I'm one of them. So, I guess my question to you would be: is it something you want to get over, and think you can get over? If so, then get a good MC and a good IC and go for it. If not, don't belabor things, just end it.
I will caveat that by saying that while it's very possible he's had one ONS and that's the end of it, in my experience it's exceedingly uncommon. Usually the admission of a ONS is to alleviate the guilt of cheating, and seems to represent 'forgive me for cheating' instead of 'forgive me for this one night with this one person.' Usually it's either a string of ONS's over the course of the relationship, or an actual weeks/months/years long affair. I think of it as the 1% rule - people usually only confess 1% of what actually happened, in the hopes that you'll forgive them and stay.
Additionally, it's rare that you move past this one infidelity, and then it's over. It's more common for people's past behaviour to predict their future behaviour unless some core change has happened, which does not seem to be the case here. You didn't even think infidelity was a concern when it happened. So what's changed?