Yes, Anthony, Linder is right.
Better to know now.
Better not to be in a relationship with someone who doesn't really want to be there.
However, it must be difficult to deal with.
I am sorry that you went through all this, but, as you say, she is a 19 year old mixed-up kid, who is not ready for the type of relationship that you can provide, and who would rather be badly-treated by someone else.
Sad.
Good luck for 2010