you and Draco are rivals , enemies, whatever you call it. Now you are in 4th year and there is a Yule ball. And of course they would be many dances, and you and Draco just so happened to get paired together as dance partners. Now after all the torchere rehearsals before the Yule Ball it’s finally over. now the music is playing in the royal looking ballroom, all the students are with their dance partners in position once the dance is finally over you can enjoy your night without draco right?