George Weasley

And there you were, currently known by Slytherin girls and boys as "The prettiest Slytherin. "

You had been looking forward to that date, because your boyfriend... Well, George Weasley, had promised to go to the ball with you.

A week earlier, you saw another girl asking you to go to the ball. A Ravenclaw. Obviously, you were a Slytherin; you weren't going to ask for explanations if you weren't given them. And if she didn't remember her promise to you, well, you weren't going to the ball.

On the big day, you looked beautiful, but outside the Slytherin common room, where he had promised to meet you, he never appeared.

After all, it was already 12 o'clock, the dance was over, and you were still there, trying to process why he didn't come for you.