*points to username, obviously you know what advice I am going to give you*
Looks do not bring you chicken soup when you are ill.
Looks do not support you in hard times when you are out of a job and the money is running out.
Looks don't get up at night with your kids.
Looks won't be there with you in the hospital when you are having a major health scare.
Looks don't love you anyway even if you've gained a few (fat) pounds.
Looks don't forgive you if you cheat.
Looks have no intellect or sense of humor. Those things are found behind the eyes, not in them.
It's what's in the heart that matters.
However, if you really can't get over how she looks, and you have to have someone who looks like what you want, go and do that. Don't be with the girl and then hurt her later because you've changed your mind based on looks.