Why do people ask this question?

[AverlinAngelRose]

"If your girlfriend gained 300 pounds, would you still love her?"
I'm straight. But first of all, I would still love her personality and her jokes, but you know what? People want a healthy partner, someone who is up for activities Who doesn't want someone healthy?
And, physical attraction and sexual attraction does play a big roll in a relationship. Of course it isn't the most important thing, but a good sex life is important.

[Man_Over_Game]

That's absolutely right. I don't care what race or weight she is specifically, as long as I'm attracted to her it doesn't matter. Without that physical attraction, it wouldn't be much different than being with a best friend or sibling.
The health matter is a great point as well.

I guess people just want to target others for their shallowness, but a little bit of vanity is healthy. It's why we want nicer cars, nicer houses, lovers that make us happy both physically and otherwise. And those aren't bad things to want.