Relating to "The Outsiders"

In the book "The Outsiders" by S.E. Hinton it talks about how the greasers and socials don't get along. I have never experienced this, but I know someone who has. She was a very good friend of mines. She would jump other people because people from her own gang would tell her to, steal, and do other bad stuff. In chapter 2, Ponyboy meets a Soc. They seem to get along in the beginning, but then Ponyboy thinks she's like the rest of the socials. This reminded me of my friend because she related to this a lot.