Though I'm not entirely certain, I'm pretty sure your answers are correct.
Answer:
i think it means that if someone is suffering, everyone is suffering because we need another to thrive
Explanation:
Right before he dies in the hospital, Johnny says “Stay gold, Ponyboy.” Ponyboy cannot figure out what Johnny means until he reads the note Johnny left. Johnny writes that “stay gold” is a reference to the Robert Frost poem Ponyboy shared when they were hiding at the church.