Slim was mad it Curley because Curley thought his wife was with Slim. Curley gets mad at Lennie because he thought Lennie was laughing at him.
Look Curley ain't gone tell nobody what happened here. You got your hand stuck in a machine. If you tell anyone I am going to tell the truth
I won't
Lets take you to the doctor
Slim is Curley going to tell his old man
YOU TOLD ME TO GEORGE
Curley started hitting Lennie because he Lennie was laughing at him. George told Lennie to fight and defend himself.
You told me to George
Its ok Lennie
George and the men in the bunkhouse was trying to get Lennie to stop. Lennie breaks Curley's hand because George told him too and because he got scared.
George do I get to still tend the rabbits?
Lennie yes you get to still tend the rabbits
George is scared because Curley's dad might kick them out. Slim told Curley he got his hand stuck in a machine and if he opens his mouth about what happened, Slim is going to tell the truth.
George cleans up Lennie after the fight. Lennie and Georges talk about what happened and about the dream.
George comorts Lennie. Lennie talks about the dream and tending the rabbits.