The lady in the looking glass

This story to me is about the fact of how money is not everything. In the story she has lots of possesions and money but no actual friends. It shows that money can not buy happiness, because she had many things but without it she is a loser with no friends. The concept of the looking glass is a little confusing to me, why was it needed for us to be able to view of her life? It was also a little creeperish because it felt like we were spying on the women.