Relationships: How is that theme represented in the story?

The Capitol keeps its population in line partially by keeping them separated. It uses class and spectacle and District separation to keep anyone from growing close to anyone else. Katniss brings this sense of isolation with her into the arena, believing that success will come from staying apart from the others and considering everyone around her as an enemy.

Part of her growth in the novel is the realization that people are stronger when they are together. First through her alliance with Rue and then with Peeta, Katniss finds she survives better when part of a team. Her empathy for others is connected to the recognition that people are connected by shared humanity. Some of the most emotional moments come from this sense of community, as when District 11 gifts Katniss bread for her affection towards Rue. Her growing sense of community helps Katniss identify the Capitol as her society's primary antagonist.