She complicated his life so much. He would be better off without her.
Every second of the day the image of a pair of green eyes glaring at him replayed in his mind. The owner of those gorgeous eyes was constantly getting him in trouble with Glace, reducing Vanilla's chance of becoming Ogre Queen, and making his heart hurt every day. Pierre couldn't afford to have that redheaded ray of sunshine in his life because she kept getting in the way of his success as the future Ogre King.
But he wouldn't want it any other way.