This happened at the moment when Soda treated Ponnyboy with contempt and looked at him as if he were an unworthy person who should be sent away quickly. This shows that just when they met Soda did not trust Ponnyboy and therefore wanted him far, so that he would not disturb anyone.
That question is about the book "The Outsiders" that shows the lives of boys involved in violent street gang disputes, as they struggle to survive in a twisted and dangerous environment for them.
