There is an old saying If you love something let it go if it comes back then it was ment to be.
As I read there is a child involved and should not suffer cause she don't want a relationship. I think she is saying hurtfull things cause she don't know how to act around you so she says things like that to make herself feel better.
Whats she says don't let it bother you, let it go in one ear and right out the other.
I have the understanding that she don't want to fix the relationshi[ and if you keep pushing she is going to keep saying hurtful things. I thnk she is trying to make you relize that there is no chance and to move on.
You can love her but you can't make her love you. You can find someone better that you can spoil with romance.
Hope this helps you
Amye
http://www.noir-ailes.com/amye