How does Ponyboy react to seeing bob Sheldon and picture in the year book?

When Ponyboy sees Bob Sheldon’s picture in the yearbook, he feels a mix of emotions, including anger and sadness. Bob represents the conflict between the Greasers and the Socs, and seeing his image serves as a painful reminder of the violence and loss that resulted from their rivalry. This moment highlights Ponyboy's internal struggle with the reality of their lives and the tragic consequences of their social divide. Ultimately, it reinforces the themes of empathy and understanding in the novel.