What major events happen in chapter 2 of The Outsiders?

In chapter 2 of The Outsiders, several major events take place that move the plot of the novel forward.
First of all, Dally, Ponyboy, and Johnny go to the Dingo for the Nightly Double. This drive-in movie theater has a bad reputation, but it is a greaser hang-out, so the three friends know lots of people there.
While watching the movie, Dally insults Cherry Valance, and she stands up to him. Even though their moment of connection is characterized by hostility, there is no doubt that Dally makes a deep impression on Cherry; she later unexpectedly admits to Ponyboy that she admires Dally, revealing a depth of character that surprises Ponyboy.
After Dally leaves, Ponyboy and Johnny sit with Cherry and Marcia and make friends with them. This moment is important because Cherry and Marcia are Socs, and the two groups rarely intersect in such a peaceful and friendly way.
While at the concessions stand together, Ponyboy tells Cherry about what happened to Johnny that made him so nervous. Cherry defends the Socs who jumped Johnny, explaining that "things are rough all over," expressing a theme of the novel in clearcut terms to Ponyboy, who is skeptical but open to Cherry's worldview.