QM - I hope my comment didn't invalidate your experience with that person. I know there are people out there who do thrive on getting attention anyway possible: good or bad. That's why there's such things as munchausen by proxy. But I think/hope that that's a very small population. And even those types of people still can learn healthy ways of getting attention if they work on it.

I'm sorry for your experience We can only do our best with the information we currently have.