I agree with you, I used to be very shy when I was younger and I'm still not very extroverted. I have been told that I looked arrogant. Moreover I think that an insecure person sometimes tends to "put her nose up" ( hope you know what I mean) when e.g. entering a room with people she(he) doesn't know to protect herself. I also think that Charlotte meets a lot of people, that have a certain oppinion about her before they ever talk to her. maybe she doesn't want to be hurt, and so unwillingly confirms the prejudices.
But on the other hand it is IMO very dangerous for a young girl to read about herself that she's the most beautiful person on earth. And I have to say that Caroline seems to be very arrogant to me. That mighzt have the same reason as I have pointed out before, specially when you think about carolines life, what has happened to her also with the press. but Stephanies former husband daniel D once said, he never felt accepted by caoline only because of his background. Ans Melanie de massy (?), I don't know how close she is with Charlotte, probably not very close, is incredible snobbish. She run away from Vienna's Opera Ball because she was only in the second row. What a fool, sorry! Ans this Stavros Niarchos person, don't know how close he is with charlotte obviously is extremly stupid, arrogant and snobbish, sorry, but his behaviour towards a homeles(do you call it like that?) person really shocked me.
What I wanted to say is that Charlotte may be in an environment that feels invulnerable, better and more importand than ordinary people. a proof for that is IMO also Andreas "posing" naked right in the front of cameras.
p.s. talking about someones personality IMO is a it dangerous, if this was a magazine, the grimaldis would immediately go to the court against it. If the moderators feel that my comment is not appropriate, please remove it, but I don't want to hurt anyone except stavros.