Well narcisistic personality disorder is like many other disorders in that it is improperly labeled quite often. Everyone has a small element of many disorders in them. I have small traces of everything from paranoid schitsophrenia to ocd to disassociative disorder. Of course, I am basically a normal person. Disorders usually are a more deeply rooted and serious problem that will probably require therepy and/or medicine to aid in curing. I suspect that while this girl clearly is narcisistic, she probably doesn't have a disorder. Some people are just jerks.
On the other hand, you could be right, though. As psychology continues to grow, we find that many people go untreated for disorders that could be helped by a professional. It's posible that this girl has developed ncd and could simply not know she has a problem.
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