How/Why does S. E. Hinton use Verbal and Situational Irony in “The Outsiders”?

sam knew that staying up late on a weeknight would effect his exam performance the next day. however, he believed that his friends would be mad at him if he didn't join them. peer pressure and the thought of losing his friends scared sam. he planned to meet them for a couple of hours and then leave early to study for the exam.

i think sylvia like her but she not trying to show it and i think rainbow will forgive her.

explanation:

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every four years the american people choose a new president, and 1988 is one of those years."