Yes, partly.
I still think she's a typical "actress" in that she has a desperate need for validation and need to be admired and loved, and therefore reacts badly to any type of criticism.
I do feel sorry for her. Her husband is an immature, impulsive, infantilised man who's never matured past the age of 12. He never fully prepared her for what marriage to him would be like, and built up how important she would be.
As a C list level actor she was not prepared for the level of press intrusion & public scrutiny she would be faced with, though she obviously thought she was (as did he).
Neither seem to be adults who grew up hearing the word No and set off the worse in each other IMO.
I think she was rude & abrasive to staff as she had no experience in being in that position and seems to be under the impression these were her personal employees/PAs (in the celeb sense of PAs she would have been aware of in film/tv world), rather than employees of "The Firm" who all had clear boundaries for their roles. And Harry didn't help her understand this but just blamed everyone else.
I think she completely underestimated what the expectations of what a Senior Royal role meant and was a bit arrogant (due to Harry) that she could just "wing it and get away with it".
I'm wondering if Harry hadn't explained to his family just how serious he felt about her, so W&K may have appeared a bit standoffish as they thought maybe she's just another girlfriend, lets see how this goes before being too open with her? I can see how a "Hollywood lovey type" could initially come across as very forward. Harry said in the book that W&K were big fans of Suits and therefore of her (🙄), so maybe she was expecting them to be all gushing? I mean, they've met plenty of MASSIVE stars before...Tom Cruise level.
Suits is, well, not that. And I say that as a fan of the show.
I've started to think Harry is the issue here overall.