Why is Junior confused when Roger did not fight him back?

         Junior was confused when Roger did not fight him back because in the Rez, fighting was how they dealt with problems. In Reardan, bulling is different. They tease and call people names but they have respect for each other causing fighting to not be involved. In the Rez, people do not have the same type of respect, causing fights to be the answer to all of the problems. “’I can’t believe you punched me.’ He sounded insulted. He sounded like his poor little feelings had been hurt. I couldn’t believe it. He acted like he was the one who’d been wronged.” (65) Junior does not understand that there are different rules in Rearad than the Rez, which I believe, will affect him later in the book.

         Why did Junior not understand that there are different rules? Why does Junior feel superior after hitting Roger? How will this affect both Junior and Roger?