What does poneyboy think a few times after reading sodapops letter?

After reading Sodapop's letter, Ponyboy reflects on the deep bond he shares with his brothers and the struggles they face as a family. He realizes the importance of communication and understanding in their relationships, feeling a mix of guilt and longing for connection. The letter prompts him to reconsider his perspective on life, emphasizing the need to appreciate the moments they have together despite their hardships. Overall, Ponyboy feels a renewed sense of hope and responsibility towards his family.