At the end of the chapter, how does the author foreshadow that bad things are to come?

What chapter are you meaning?

Chapter 3

Ponyboy is having conflicts with Darry. Jonny has even worse conflicts at his home.Pony finds Johnny and tells him that they are running away, and Johnny joins him without questions. When they run out of breath, they start to walk and smoke. Ponyboy tells Johnny what happened at home. Johnny confesses that he likes it better when his dad is hitting him, because at least it means he's noticing him. This all foreshadows trouble in the future.

thank you, Aslan. You are awesome.

No worries! Glad to help.

quick q's are you a teacher?