I love fairy tales because of their haunting beauty and magical strangeness. They are set in worlds where anything can happen. Frogs can be kings, a thicket of brambles can hide a castle where a royal court has lain asleep for a hundred years, a boy can outwit a giant, and a girl can break a curse with nothing but her courage and steadfastness.
If you've treated your girlfriend without respect, taken advantage of her, or cheated on her, your actions have taught her that she has no value. Needless to say, this is a serious, serious injury. If you don't try to make it right, she might start to believe the lie you've told her and spend the rest of her life thinking she deserves poor treatment.