What are 3 instances where Amir feels or shows jealousy toward Hassan?

1) On Hassan's birthday, Baba summoned him to the house as usual to collect his present. To Hassan, Amir, and Ali's shock, Baba had hired a plastic surgeon to correct Hassan's harelip. Amir was jealous that Baba was giving Hassan such special attention. (Chapter 5)

2) Amir was jealous that he could not stand up for Hassan in the same way Hassan stood up for him. He is jealous of Hassan's unquestionable loyalty, but it is all overshadowed by his guilt.

3) Amir is jealous of Hassan's easy relationship with Assef. (Chapter 8)

Chapter 6 , Page 45 says "I'd change my mind and ask for a bigger and fancier kite, Baba would buy it for me - but then he'd buy it for Hassan too. Sometimes I wish he wouldn't do that. I wish he'd let me be the favorite."