Just to elaborate. I do not think thic girls are ugly or whatever. It's more about the healthy lifestyle followed by good habits. I do drink beer and may party now and then but for at least 6 days a week I eat clean healthy food, workout and drink plenty of water. I would never be able to accomplish something that big if I shared my life with someone who has no self control. So no, it's not because I am shallow, but because my body is my temple.
And yeah, maybe not all fat people are very unhealthy but that's more a matter of when than if. Also fit people can do everything fat people can, but better, even eating. The most famous eating champions are actually small.