If she isn't responding to your calls or emails, what will more emails and calls accomplish?
It's a struggle and you are going to have to use anything at your disposal to keep your head on straight and not turn into somebody that is bombarding her with every scrap of ammo you have.
One day at a time. It will turn into one week at a time. One week will turn into a couple weeks. And that is not a long time in the big picture. Don't set a time table for it now, it's going to drive you crazy. Your goal here is not to win her back or talk her into it, it's to regain your sanity.