(((SUE))) Everyone has their limit and knows when they get there. You've went way beyond what your H deserves trying to stick this out. You are an amazing person Sue. You and D3 will heal and move on in time. Taking yourself and her out of this situation is the best you can give your family right now because it's so destructive to be where you are. I'm sad for you and D3 because the road isn't an easy one, but I'm hopeful for you. As time passes you'll find the happiness you deserve without the hell you've had the last year.
I'm sad for your H too. He's not a happy and strong person. When I read the things he said to you, I think he might have been saying them to himself. I don't believe you're going to have problems rebuilding and finding happiness after the initial hurt subsides. I do think he has many struggles ahead of him though. Being with you is not what's making him unhappy.
I'm praying for all of you, especially you and D3. She's going to be fine Sue. You're a great Mom and she's young. I think taking her out of this situation as long as your H is so out of control is a courageous thing to do.