Hello Cat
Sometimes I think it's the loss of a dream that is the hardest to move on from. At one point you wanted a family with this man. It was your dream. And the dream changed, which is normal as well. And maybe seeing your ex husband with someone new, was the trigger that made you realize that it was truly over. No going back. And when a door closes, it is a truly sad thing. So mourn the passing of a dream that is no longer right for you.
But you asked how to move on? Stop looking at the closed door and wondering how, why, what if? Focus on all the new doors that have opened now that you live your life in a way that feels true to you. It's okay if you don't have it all figured out. Your doing great. Take care��