Who is Margie Young-Hunt from The Winter of Our Discontent and what is their importance?

Margie Young-Hunt is a single woman who lives in New Baytown. She is Mary Hawley's best friend, and lives a life of mystery and seduction. Margie is a main character in this novel because she alone sees the changes in Ethan as he struggles with his temptations, and in fact, she is one of his temptations. The author's choice of character names for Margie is interesting because she is young but aging rapidly, and her life is focused in hunting for a husband or secure provider for her future.