Chapter 1 Ender was the only one with a monitor in his class so Stilson bullyed him later he got it removed.he was jealous because he was smart and clever.
Chapter 2 10 year-old Peter however, is jealousy that Ender stayed in the program longer than he had .Peter challenges Ender to a game of Buggers and Astronaut.It compares to our topic because it shows how Peter is jealouse of Ender.
Chapter 5 They discuss Ender's isolation. Graff insists that Ender must remain isolated so that he never thinks that anyone but him self will be there to help. Graff was jealouse because Ender is training in the battle room with his friends and he doesnt like them.