I could not live with the uncertainty and not knowing the truth. I could not live with the betrayal and lack the keeping the wedding vows. I'd have to know the truth. At age 28 or so, I could not live the rest of my life under the conditions that
@obelisk describes. Anything would be better than that. It wouldn't matter to me if I had to re-enter the dating pool, even if I were not a skilled seducer. I could not live with myself with the lack of self-respect I was showing to myself. In the end, one must love and respect oneself. Living the lifestyle of a cuck is form of self-disrespect.
He's not the typical AFC. Many AFCs would leave over the breaking of the marital vows. Even in an unmarried, childless monogamous relationship, infidelity is a violation of the generally accepted framework of a monogamous relationship. A lot of AFCs understand that, even if it is painful for the AFC.
He's a bigger than average AFC and a beta cuck.
That's a bad sign. It's a violation of an Iron Rule of Tomassi too.
Iron Rule of Tomassi #7
It is always time and effort better spent developing new, fresh, prospective women than it will ever be in attempting to reconstruct a failed relationship. Never root through the trash once the garbage has been dragged to the curb. You get messy, your neighbors see you do it, and what you thought was worth digging for is never as valuable as you thought it was.
Many marriages I've seen in my social circle violated 1 or more Iron Rules of Tomassi prior to the wedding day.