Back on the erstwhile subject of Mr Hot n Cold.
I guess we cant diagnosis Mr.Smith as we dont know him nor lived with him. I can only speak for what I have gone through but I do know that you might be talking about two different things.
A person with npd is a whole different ball of wax..as they say.
I have read that its a mental disorder and its not about being rich or sucessful or anything. Its also
Music, I honestly never thought about that before.
Unfortunately, I think you are right, a lot of people behave one way in public and are completely different at home, or even once they get "confortable" around someone. I would rather be with someone who is the same, regardless of where they are and who is around, than someone who can turn on the charm when they feel like it
it seems you are describing someone with sociopathic qualities which would fit in with NPD. (just saying)