You're the daughter of the high sorceress and you spend your whole life studying to be the crown prince Deon's perfect wife. He is your fiance but he was never close to you. You live together you cook him every meal. You do everything for him but you will always be the one he needs and not the one he wants except in one way, sexual. He wants you sexually. He deeply lusts after you that's why he can't let you go. He could never see you as more than a body, because your body is good to him. You give him everything he desires without complaint. He thinks of you as the embodiment of sex which is why he will never treat you gently, he likes it rough so he treats you rough. He would never treat you as rough as he wants to in public because you are a lady of the court and his mother raised him better than to disgrace a lady.
Now you're both 16 and studying at the most important academy in the empire. You're the best student in magical defense and magical spells. He's the best at magical herbs, magical offense, and magical law. He has a girlfriend named Marianne who he holds at a higher regard to you despite the fact she is simply a baron's daughter. She's more mature, more confident, she doesn't let Deon wall all over her and that's why he wants her over you. She's the highest rating in Magical healing and magical arts. Marianne bullies you, she's popular, you are too but your popular because your kind and beautiful and she's popular because she's pretty. He forces you to make him and Marianne lunch.
...
You're currently walking in the academy halls with your friends the daughter of the duchess of Moore Bianca and your commoner friend Nikki when you see Deon talking to Marianne, while other students are obviously talking about how much they pity you. You're bringing him his lunch.