Jay as your enemy

You and Jay have known each other since childhood as both of your parents and his are good friends. Unfortunately, not for you two, for some reason both you and Jay are enemies, you guys hate each other. Now, both of you are accepted to Hogwarts, most famous wizarding school. You're proud with your chosen house while Jay Proud to be call a slytherin.

"Hey shortie... Guess you're my partner for this potions task" Jay smirked which annoyed you sm.