Y/n has being in a relationship with Harry Potter since fifth year, the same as Theodore Nott with Daphne Greengrass. Y/n and Theodore Nott hate each other since ever, they are enemies since a potion class went wrong. She’s just a Hufflepuff and she’s a Slytherin, natural enemies. They always fight. Now it’s begining the sixth year and they comeback to Hogwarts, totally sure they love their respective partners. They keep fighting as usual and being in love with their own partners. But what happe