“People named Romani, they go the house?” 
Anyhoo:
I do not find fat people attractive, and thus am unlikely to ever date one. → not shallow
Fat people are unattractive, and only desperate people would want to date one. → shallow
See the difference?
I wouldn’t say you were shallow if you weren’t attracted to fat women. However, I may change my view if you dated a woman for a while, fell in love, and then stopped seeing her because she gained weight.
I’m not sure why the difference. I guess I would expect that after a relationship moves beyond a certain point, you should be attracted to someone for more than their physical characteristics.
Let’s face it, we all age. I may not be attracted to 80-year-old men now, but I would hope that if I met someone and settled down with him, I wouldn’t stop being attracted to him as the years go by.