Insensitive/Unintentionally mean friend?

Let her go. I know its not the anwer you were looking for but trust me. I had the same problem(maybe worst) with a friend and I never stood up for my self. 5 years later im still with her and she didnt change and I just feel stupid for letting her walk all over me for years. I should of let her go so its my tip for you. anyway good luck :)