When Johnny tells Dally to leave the girls alone Dally just storms out without confronting him or punching him because Johnny was considered like a pet in the gang.
Explanation:
In the story, "The Outsiders", Dally is a rebellious boy who does not do things legally, and when they enter the theatre, in instinct, Dally tends to taunt the girls. Though he is rebellious the other two, Johnny and Ponyboy are not as bad as him.
When Johnny tells Dally to leave the girls alone Dally just storms out without confronting him or punching him because Johnny was considered like a pet in the gang.
When Dally tries to launch on Cherry he is stopped by Johnny, because everyone in the gang knows only Johnny can stop him and no one else can which makes Dallas leave silently without any sort of aggression.
