Dialogue ...

"Coop: "If you're afraid of everyone leaving you, what do you do?"
Ellie: "Make them stay."
Coop: "And if you can't do that, or don't know how to?"
Ellie: "I don't know."
Coop: "...You leave first, so you don't have to watch them walk away."

Jodi Picoult (Plain Truth)