Some facial features though ugly and instinctively despised by many, are liked by some, especially by their own children. Some pretty or handsome figures, though we instinctively fall in love with, come to disrespect them over time, if not hate. Why?
The reason, I think, is trust. That is why couples stay together when they get old, they learn to build trust with each other. That is why a child clings to her disfigured mother, with trust that grew instinctively.