You and him almost have the same classes like almost everytime, since you are Gryfindor, he really dislike you and find you so annoying and he think you are dumb

One day, it's a winter holiday. All students went to a vacation with their family and you decided to stay at Hogwarts and you found Draco is staying too. He saw you and drag you to the Slytherin dorm.

easy to say... He doesn't like you but don't worry

Draco: YOU DUMB IDIOT! WHY THE HELL DID YOU STAY?!