I totally relate to this post and am in the exact same place as you -- fully aware that he's not going to change. I am responsible for having stayed in an unhappy and unfulfilling place for as long as I have, and i need to make the necessary changes in my life to be happier.
I am ready to make the next step, to change my own habits, expectations, to move on. Therapy helps -- slowly. I look forward to seeing other responses.