To be honest, I'm not sure how anyone does it. It's fairly black and white to me; a woman loved me deeply, someone I was insanely attracted to and meant the world to me, and while I'm not 100% at fault, there is a litany of things I regret and feel shame about, and now she's gone. How does anyone ever get to peace with that?
You're human, steve. You and I both made many mistakes. Your wife, you, my wife, I all had difficult upbringings. We didn't have great role models, we didn't go to school and get a Relationships degree. We accept we did the best we could at one point in our life with the tools we had available to us. We forgive but we do not forget. We learn from those mistakes and become better people.