Having a Co-Worker issue?

This lady is a whack job! She sounds like she has serious, deep seated issues. You are right, she is not going to change. I think the best course of action is to completely distance yourself from this woman. No longer tell her about your personal life and just keep in on a business level. Yeah, she'll be upset and maybe confront you about it. Tell her the truth if she does. Tell her that she doesn't respect you or anyone else and you are tired of trying to be her friend. If she causes more problems, go to her boss. I'm sure the boss feels the same way about her and realizes she's a whack job.