Why didn't Ponyboy tell two-bit what his conversation with randy was about?

Ponyboy didn’t tell Two-Bit about his conversation with Randy because he felt that the discussion was deeply personal and significant, dealing with themes of understanding and the futility of their struggles. He wanted to process his own thoughts and feelings about the situation without external influence. Additionally, Ponyboy may have sensed that Two-Bit wouldn’t fully grasp the emotional weight of the conversation, making it harder for him to share those intimate reflections.