I don't mean to be nasty but you come across as a bit shallow. You must have been attracted to her to spend the WHOLE weekend with her, whatever you were doing If this girl is sweet, and a wonderful girl who you would stay with in a shot were she not overweight, i would hold on to her before someone else comes along and pinches her. You know what mate, you may not be such a great catch yourself. Losing all that weight doesn't mean you are now entitled to have your pick of the girls. Stay with her and work with her to lose the weight. On second thougts, she probably deserves better. Let her find a better man.