Reconciling seems like a good concept in theory......"the old marriage is dead...." yadda, yadda....
But the thing is, after a betrayal like infidelity, the trust never comes back. We can forgive till the cows come home, but trust is something else entirely. I think there would always be that sickening little niggling of doubt. Blech....
You've lost me here. Many if not most marriages deal with betrayals and/or infidelities and many of those thrive...
There can always be "that sickening little niggling of doubt..." whether there has been exposed infidelity or not. Your focus changes from what is the other person doing to what am I doing and am I getting what I want out of the relationship. If you make absolute infallibility a prerequisite to M, well, we should toss the institution all together...
I am not saying infidelity is minor, I AM saying there are many ways to screw over a partner and that is just one.