This is a tough situation.

It's true that once trust is broken, it's nearly damn impossible to get it back. At the same time, there are circumstances and situations. For example, some could look past a physical indiscretion that did not involve emotional intimacy. For others, it doesn't matter; cheating is cheating. Someone that is open about it, it shows they can at least be honest and not cover it up with lies. To me, lies would be worse.

Many people are black and white about what should be or shouldn't be.

I would seek professional help because, in my opinion (and am not a professional), different people have different marriages and/or relationships. What works for one, does not work for another. My recommendation would be to explore what you can and cannot live with.

As for me, this wouldn't work. I couldn't do it. It would have to be me, me only, and that's it. I don't like sharing.

I'm sorry I cannot be more specific.