The same exact thing happened to me, except I chose to ignore it, didn't do anything about it and it still is happening to me, but now it's only worse. I pray every single day that God will give me the stregnth like you had and tell him to kick rocks. If you let him back I can almost guarantee he WILL do it again. Don't even second guess what you did was the wrong thing that is the best thing in the world for you to do. Because you are so much better than that to give your love to someone and they are giving their's to someone else. Listen to me, if I could only take my own advice. Please don't end up like me, don't let him back you will be much happier if you don't. Just remember even though it feels like your going to die when your heart is broke my mom always said nobody ever has and the only thing that will cure it is time!!!!