When you get to know someone, all their physical characteristics start to disappear. You begin to dwell in their energy, recognize the scent of their skin. You see only the essence of the person, not the shell. That's why you cant fall in love with their beauty or looks. You can lust after it, be infatuated by it, want to own it. You can love it with your eyes and your body, but not your heart.  That's why when you really connect with a person, any physical imperfections disappear, become irrelevant.