How are Rachel and Dillon related to each other? Why is it impossible for Rachel and Dillon to have a romantic relationship? How do they feel about each other?

How does Rachel feel about Tom? Why is it impossible for Jackie and Tom to have a romantic relationship? What conflicted feelings does Tom have for Jackie?

How is Jackie like Rachel? How is she like Dillon? Who is Jackie's biological father and what evidence is there for that conclusion?

What is black lung disease? What kind of workers are victims of black lung disease? Why?

What does Flora want for her daughter, Rachel? What does Rachel want for her daughter, Jackie? How is Rachel like Flora? How is she different than her mother?

Why does Rachel not want to find out who Jackie's father is? Who is she protecting by not revealing the possibility...