What ever happened to love the person not the body? If you love the girl it won't matter what she looks like, but if your asking questions now about her weight then she is not the one for you. You are in love with an image, not a person. Do her a favor and move on and let her find someone who will love her for who she is. Her personality and what you fell in love with in the first place. Believe me, someone else will appreciate the real her. Your loss.