How do i get her stilettos off my neck?

she's walking all over me ~ she goes out clubbing and i don't hear from her for days at a time ~ any other time, she's texting off and on all day and calls at least twice ~ this episode doesn't happen all the time, but its intense and very uncomfortable when it does ~ i'm tired of making time for her so she won't get mad, then she ups and disappears on me for 2/3 days w/no care in the world ~ how do i get her stilettos off my neck and get me life back? ~ i mean, i don't wanna lose her, but i can't keep going through this ~ i changed my number, my time and stopped talking to most of my friends for her, just to be left in the dust ~ also, she's a fan of "no label" relationships... I mean, should i just walk away... its been a month and she's done this a few times?--any thoughts?