What makes mrs forrester a lost lady

Mrs. Forrester is elegant, romantic, and beautiful. She has the family background and a bit of money to go with it..... in essence, she has everything one could possible need to be considered a lady, but she is lost. Mrs. Forrester is lost because although she has social position..... she flouts it. Drinking to excess would not be considered ladylike, nor would taking a number of lovers..... she does both. Her boredom and feelings that she must always be entertained lead her astray, thus, she is a lost lady.