jeremylee...you can't stop her from dating...in her mind she has already 'dismissed" you, it's as if your big mistake from years ago is her jumping off point. I'm not saying that you two can't ever get back together. My brother and wife separated up to 364 days and only needed one more day for a legal divorce. GOD changed things, softened my brother's heart, ran to her, reproposed, had a 'new" awesome wedding to declare to the world that they were indeed a couple and life has been grand for them! They are there for other couples going through the same thing.