who is bubeh and how does she treat rachel?

Bubeh

Ruth's grandmother on her mother's side, Bubeh, a diabetic, housed Ruth when she arrived in New York and worked in her aunt's leather factory. Bubeh passed away during Ruth's trip home to care for her ailing mother. Throughout the story, Bubeh was the one constant from Ruth's past that she felt connect to, and who in turn made her feel a welcome part of the family. They didn't always agree, but Bubeh's love was a constant in Ruth's life.