"An Around-Thirty Young Lady Has No Husband"

"Duke Luna's daughter, I'm breaking off our engagement! I have awakened to true love!" Starting with this engagement cancellation, I—a former housewife in my thirties at heart, carrying memories of my previous life—cheer loudly. In my past life, I was cheated on and raised my children alone, so I no longer wanted to get married at all! I've been causing all sorts of harassment to His Highness up until now, but finally it will all pay off. Please, Your Highness, be happy with that lovely pink-haired girl!!! I was about to send him off with these thoughts, but something seems strange about His Highness's behavior. Why!? ※Short story from Duke Luna's daughter's perspective ※The King's perspective is here: https://ncode.syosetu.com/n4321hy/ ※Added the Prince's perspective: https://ncode.syosetu.com/n5065hy/