Here's why:
* The Stakes are High: The dance represents a chance for Leo to prove himself to his classmates and potentially win over his crush, Lucy. It's a turning point where he has to face his fears and insecurities.
* The Confrontation: Leo's arch-nemesis, Jake, tries to sabotage the dance and humiliate Leo, culminating in a physical confrontation. This is the point of maximum tension in the story.
* The Turning Point: While the physical fight is a major event, the true turning point is Leo's choice to stand up for himself and his friend, David. This act of courage transforms his reputation and earns him respect.
Although the book ends with a sense of resolution, the dance is the critical moment where Leo makes a choice that changes the course of his life. It's where he finally breaks free from his self-imposed punishment and starts to embrace his true self.