The Question and Answer section for The Hunger Games is a great resource to ask questions, find answers, and discuss the novel.
When Katniss first meets Rue she reminds her of Prim, Katniss's little sister, And Katniss feels like she need to protect her. Rue is caring and fragile. She uses the talents she has but is not strong enough or suited for this competition.
Gale is the last person to viit Katniss before the games.