Ask yourself this...do you think you deserve a person with whom you won't have to deal with this bullshit?
If the answer is "yes," (which it should be) move on from this girl now. There are billions of people in this world and this one is obviously NOT the one for you. Accept the fact that you had a nice time while it lasted, mourn the loss of it if you feel like it, but don't waste anymore of your precious youth battling over this type of nonsense.
There are plenty of women out there who will not be like this. Appreciate yourself enough to give yourself another chance with somebody who will treat you, and your relationship with them, with more respect.
Best of luck