Maybe you're not ready to let it go and that's ok. What you can do is be kind to yourself and find what makes you at peace and happy. You have no control over what he does or doesn't do, so the energy wasted on what he's doing or thinking is just that, wasted.
Whatever happens is going to happen. Surround yourself with people who love you and matter. Take a class, a vacation, or try something that you've always wanted to try. You ARE responsible for your own happiness.
The upside is that who knows how your husband will look at this new and improved you. Nothing is as attractive as a truly happy person, but if that isn't what he wants, you still will come out of this a winner!