The kite runner 35-58

This part of the novel was sort of annoying. I was disgusted with Assef and his character and how he was a bully. I feel like Amir is just getting jealous of Hassan  because Baba cares about both of them. It was really nice that Baba got Hassan  a plastic surgeon to fix his lip. I want to know more about the kite flying tournements and what the significance is with the book and if it had anything to do with the title? But Hassan is the best kite runner in Kabul, does that mean anything ?