5. The news from what has happened back home since they left town after they killed the Soc.
6. She decided to spy for them because she realized that the Greasers had feelings and trouble just like the Socs. Also, she didn't want Dally to think her opinions are biases because she is a Soc.
She wanted the fighting to stop because she hated fighting; secondly, she had a huge crush on Dally, so she would do whatever it took to help the greasers; and finally, after meeting Ponyboy she realized that not all greasers are the same.
