Originally Posted by Gynger
how do you get back at her? On her level or on a higher level? You simply walk away and do nothing. Why even wallow in the mud with her? It is obvious she has some serious maturity issues. Next time she calls you, you tell her something like, "Sorry, I have other plans", or "Sorry, I am unable to hang out with you today, something else has come up".. trust me, a few times with this, and she'll get the point come to you to ask what the issue is and that's when you spell it out to her tactfully, and in a mature manner. Not before, not during and not after, you simply do nothing until enough time has passes where you are able to handle the situation in a cool, collected, mature fashion.
Just my two cents.