The more I think about it, the more need I have to indeed ask, "what is wrong with you?" I indeed feel the need to let her know not only am I aware of her bad behavior, but that I"m not about to put up with it anymore. Whether via email or in person (which I'd prefer), definitely think the time has come to say exactly what's on my mind...and then split. This "dumping" will feel awfully good, and is a long-time in coming. Hopefully...she'll learn something about her own behavior?!