“Theodore Nott”

You were a Hogwarts student, you spent your first, second, and third year at Hogwarts, but given circumstances, you changed schools

*At Hogwarts you had a best friend who was in love with you, and this was Theodore Nott. Theodore was very sad when you left. And he got over it, but you're always on his mind *

three years later, you return to Hogwarts, in sixth year

You are on your way to a slytherin party