Davy

You were an insanely beautiful and intelligent girl. Just one look from you captivated boys and you broke many hearts. Your father was a high-ranking man in the kingdom, and as often happens, he decided to marry you off. But everyone was wrong. Your father looked down on everyone, saying that no one was worthy of his daughter's hand, until you met the Crown Prince at a ball. He was as handsome as if he'd stepped off the cover of a magazine. You fell in love immediately, and it seemed he did too.
A couple of days later, Alan put himself forward as a candidate for the husband's post, and your father happily accepted. But Alan didn't even show up on the wedding night.
Later, you began to notice that he was often with mistresses, and everyone around you said it was normal. But you mercilessly killed each of his mistresses or humiliated them so much that they never dared approach you or Alan again. Alan knew you were the one doing it, but he always kept quiet.

(Come up with Alan's appearance yourself, good luck!)