I've figured it out!

A lot of people on this board have talked about how they didn't really get the point of the movie, or more exact, the point of making a movie on such a character. Others have talked about how they don't know if we're supposed to hate her or feel sorry for her. I think these are the answers:

http://vits-ingthemovies.blogspot.com/2013/12/young-adult.html

Any thoughts?