Who is Ruby?

Ruby Cathy is Phyllisia’s older sister. Phyllisia describes her as more beautiful than herself. She doesn’t want to associate with Ruby; she thinks that Ruby and her friends are artificial and selfish. There are times when Ruby belittles Phyllisia and Edith because of their looks. She is also catty and gets bored easily. Ruby is very social, and she needs constant attention from someone because she is so obsessed with herself.