I wouldn't like to be rude, but I think you shouldn't have gotten married having an eating disorder unsolved. Probably you expected that it would end once you get married, and that marriage will motivate you to stop. But of course, it didn't. Because you first have to solve it WITH YOURSELF. Only when you are able to love and respect yourself can you receive and take love from others. Using marriage (or a relationship) as a crutch for one's problems is wrong - it just worsens the situation. Deep inside you wanted to be rejected, and that's what eventually happened. It's not just your ex husband's fault - partly it's also you who sabotaged the relationship. And, unfortunately, I'm also talking from experience here.