Hbm- Please know that what you are doing is 100% the right thing to do. Please do not falter for a second on your choice. Your future is bright and beautiful, you have family near by to support you and you do not have a child that you have to share with this man. Walk away, don't look back, and know that you are better than this b/c you are. Please believe me when i say this, I know your heart feels as if it is ripped out, but honestly I truly believe that you are in the best place that you can be after something like this. My situation is similar to yours, h decided to try to work things out, lasted about 3 months and goes back to her. The difference is we have a child, i have no family here. I am stuck interacting with him for the rest of my life. I can't not leave to be with my family b/c he would not be a part of our son's life then. (My family lives 1000 miles away). And what you said earlier, about praying that the relationship with her stops, I pray every night for that as well so that my I don't ever have to watch her be part of my son's life. The thought just KILLS me. So, as I said, walk away now, don't look back. You deserve SO MUCH BETTER. And I truly believe that this early in your marriage, the chances that he won't to this agai are slim to none. Next time, though, the stakes will be higher.
