It's simple HI. When you are lean you get more confident, when you become a fat ass with a ballooned face you lose your confidence. Everyone is like that.
The better you think you look the more attention you will get.
Yes, girls care for looks, but how much? I say looks are only for the first impression, after that it's all personality. Now if you are looking for a quick fuck than it's all looks/the way you talk.
I know one thing, you don't marry someone cause they are pretty and if you do you are an idiot.
-sk