Now listen here hon, i know what you mean by thinking that for some mundane reason or another your not good enough for the person your with. Even though they say you are. Theres nothing wrong with wanting to be healthier, and its GREAT that you both are doing it together!! heart It makes it a whole lot easier, and i don't see why you can't see the fact that your Girlfriend is supportive enough to say "lets do this together." Yes, thier may be something you think you can do to make her love you more, but thinking logicly, if she didn't care for you, and didn't like how you look, would she be with you?
Just have some more faith in her, and in you both. heart
~Leo