It looks like Amber and offwiththeirheads have hooked up and, she has a list of places she wants to be chauffeured to when she gets there. I have this vision of a dark foggy night in Tucson and a dark colored, windowless van waiting at the bus station. Amber may be able to fit this scene into one of her horror/thriller books she is waiting to publish.
Actually, I see another possibility, and it's based upon people in this time and place, but several years ago.
She wants to go back to Tucson for one reason, and one reason only. Her doting sisters are just a superficial excuse for getting out of Joplin. She's still in love with the old guy who rejected her, and dreams of a reconciliation.
It's not going to happen, though, and in her fury of unrequitted love, she's either going to try to kill him, or succeed in killing herself.
Unrequitted love makes one do crazy things.
This is why I
honestly think she's better off right where she is, with her protective sisters.