I’ve come to the conclusion that there isn’t much a man or woman can do to turn someone off if the other person feels an instant attraction and connection. I think it’s mostly instinctual, and chemical, and it’s why you see people with partners you think would be undesirable, while others who may be better get overlooked.
Plus, people don’t want to sacrifice physical attraction. It’s easy to tell someone that looks aren’t everything, but there is a physical component to relationships, and through all the trial and tribulations, you still have to want to have sex with that person for the rest of your life.