So much good information gals, thank you thank you. Seriously you probably saved my behind, and for that I am very grateful. Slow and steady wins the race, FTW. My standard for success here is she gives it a chance, but preparing for the worst. The main gist of the letter was to explain, then assure her of my intentions to stay with her, work through it together, and to grow closer in the end. I did make sure my letter gives her a really graceful way to duck out if she so desires, so hopefully if that is the case there won't be too many hard feelings...