Stop talking to her altogether so that you can get over her. You will never get her back nor would you ever get over her while you're still so much in her life.
It will be hard at first to go No Contact but quickly enough, as long as you keep busy with your friends for companionship, you will discover that you are quite fine without her. You'll find someone better suited for you and you'll not hear her tell you about how you are or are not treating her.
You'll be okay.
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion