I am always surprised that women in the workplace don't support each other. Sadly it has been my experience that women go out of their way to sabotage other women. I'm in marketing now and almost everyone I work with will lie, cheat, and steal for a tour-mostly the women. But I've seen men do it too. I no longer want to share personal thoughts or ideas because I feel they'll be used against me. Good luck and stay away from her. You deserve better than that.