You are the new girl at Hogwarts, once the Slytherin Boys heard about you they made a bet.

Matteo: Let’s make a bet

Regulus: Bet

Theodore: Bet

Lorenzo: Bet

Tom: Bet

Blaise: Bet

Matteo: Whoever makes the new girl fall in love with her, the losers have to pay the winner $50

Theodore: That’s easy

You walk into the Slytherin Common room