You must realize, you can't force somebody to have feelings for you if they just aren't there. The most important thing i would suggest to you is realize that there is more than likely somebody else out there that would give you the "feelings" that you deserve.

You deserve a relationship that is going to be equal, you give and get back (emotion wise). Your ex seems like she has too many bugs in her bonnet to really focus time and feelings on you anyways...