I know a lot of females in my past that get off on playing emotional games with men. I'm not saying they all do, but yes, some just get a kick out of it. They need the attention and feel empty without it.
My advice to you is to walk away. Talk to her one last time, lie to her and tell her everything's great, you're focusing on work/writing/church/sports what ever. Tell her it's not a good idea to keep in touch but that you wish her the best of luck. Tell her ALL OF THIS with a smile on your face. It's time to move on.