It sounds all good for you. I can't think of anything but positive things to say. Maybe she will start to think about what she is throwing away, because I think you will be able to keep up the changes you have made, because you would never want to find yourself in this situation again. And because the things you have done for yourself make you feel good about yourself.
Look up the words from the song 'Starting All Over Again', or look for the Mel and Tim version on Youtube. It's how I feel about what so many of us are doing with our spouses; starting all over as friends. It's an oldie, but a goodie.