Chapter 10: What are two things that Pony remembered about Dally?

Pony remembered that Dally was dead, and he remembered Dally falling apart at the hospital after getting the news that Johnny died.

And then I remembered. Dallas and Johnny were dead. Don't think of them, I thought. (Don't remember how Johnny was your buddy, don't remember that he didn't want to die. Don't think of Dally breaking up in the hospital, crumpling under the street light. Try to think that Johnny is better off now, try to remember that Dally would have ended up like that sooner or later. Best of all, don't think. Blank your mind. Don't remember. Don't remember.)