Whatever Happened to Amy?

Question:
 
Hi Phyllis! I was IN LOVE with Now I’ll Tell You Everything. So happy with Alice’s life!
I just have one question.
What happened to Amy Sheldon? Is she okay?
 
Phyllis replied:
 
I left that hanging, didn’t I?  In my mind, having known a young woman similar to Amy, she gets a job after high school working in the mail room of a large corporation, sorting mail and delivering it to the various departments, and is not only good at it, but very happy in her work.