I am pretty certain that my friend has NPD but she believes it could be Asperger's Syndrome. I see that people with Asperger's are often misdiagnosed as having NPD. Can anyone tell me the difference? As a side note, she has practically every symptom of someone with NPD. I find it hard to believe it is Asperger's since I have seen her turn on "charm" and interact with customers, sale people, etc. Plus, she is really good at making up lies on the spot and being believable. I don't know that people with Asperger's are capable of that. Please help. I am in a state of emotional distress over our friendship and don't know what to do. I went from being the most important person in her life to almost non-existent overnight and I don't understand why.