I just wish I had foreseen what would happen and acted differently to be the best wife I could be, and to be more forgiving of my husband's previous affair. If that had happened the momentum may have gone in a more positive direction.
Stop beating yourself up. There's nothing about your H's despicable behavior that leads me to think "if only" you had behaved differently it all would have worked out. Don't forget this is a man who said he wished his daughter hadn't been born!
Let go of him and go out and make a fabulous new life for yourself and your daughter. You both deserve better.