Trying to deal with infidelity and continue the M without pro help is to me like trying to diffuse a nuclear bomb because you know how to repair refrigerators. That's fine if it's all you got...but if at all possible, you really need someone who can guide you through it and knows what to do.
I totally agree! We did not do MC, and even though we both sincerely wanted to repair our M, we made one mistake after another until it destructed. It is the worst feeling knowing how much we BOTH wanted our M to be fixed, but that we lost it because we just didn't know the right way to make it happen. Definitely get professional help if you can!