No one is ignoring that. You think she is fat and she doesn't want to date short guys anymore. I get it.
I'm looking at the bigger picture here, something that could help you in the long run.
How would you feel if she her thoughts all along have been " he's lucky I love him because other women would run from a short guy"
I am asking an honest question here. Have you always felt she was lucky you love her because she is fat and has childhood issues and no one else would want that? Because you stated that. I am asking you if you mean that or that has been the way you have felt all along.