I think it really depends on how you go about healing yourself when you choose to D, it isn't just done and over with. You still have to heal. You have been hurt, betrayed, and broken by the one person in your life that was supposed to have your back.
That fundamentally changes your outlook on the world, and how you perceive things.
But you also have to heal it, and become stronger for it.
My MIL D'd my FIL after my H and I were married. He was a controlling man, who has multiple issues, including some OCD, and never allowed her to work when the boys were still at home. I suspect he cheated too. But My MIL, chose to be happy, and healed. My FIL was angry and bitter toward her for many years, I couldn't have them both at my house for events like the kids birthdays and so forth. He remarried within 2 years, and so did she. But he never once admitted, or owned all the crappy things he did to her. Now he is approaching 70, and I think he has let it go for the most part, but would still choose to not be around her, near her, for any event.
My point is how you heal and how you choose to live is up to you. Should you D it's up to you to either be angry and bitter about what he did, or look at it as a gift that you don't have to spend the rest of your life with someone who is so unworthy of your love and respect.