Prince William and Prince Harry seemingly tried to save their relationship shortly after Meghan Markle became an official member of the royal family.

In an article he wrote for Daily Mail, author Tom Quinn said that Markle had a difficult time adjusting to her royal life after she moved to Kensington Palace with Prince Harry.

At that time, Prince William and Kate Middleton were still very welcoming of the couple.

“Kate is actually one of the nicest royals, and she hasn't let life in her extremely grand apartment at Kensington go to her head — or at least not too much. She is nice to her staff, in the main, and she was very warm towards Meghan when she arrived,” he said.

However, Quinn said that tensions were also bound to arise between the Cambridges and the Sussexes since Markle was forced to accept the fact that Prince Harry won’t be king. Unfortunately, this is something that Markle found difficult to deal with.

And although Harry loved their cottage on the grounds, Meghan was conscious that it was tiny in comparison to the vast apartment complex where Kate and William live. Being a royal goes to everyone's head eventually — and after a while, William and Harry would meet without their wives in tow to avoid rows and stony silences,” he said.

Meanwhile, the Duchess of Sussex shocked Middleton after she shouted at one of the Duchess of Cambridge’s staff. Following the incident, discussions about the Duke and Duchess of Sussex moving elsewhere started.

Quinn said that Markle didn’t know how to deal with servants and she also overdoes her imperiousness. On the one hand, she always wanted to be like Princess Diana. On the other, she also wants people to follow her orders with just a click of her finger.

The author also acknowledged the public’s perception of Markle that whatever she wants she gets. After all, she was the dominant partner in her marriage to Prince Harry.

Markle also gained some ruthless nicknames after her antics were made public two years ago. She has been dubbed as Me-Gain, Duchess Difficult, Di 2, and Di Lite.

An insider from Kensington Palace told Quinn that Markle always felt that the royal family looked down on her. She was also convinced that they treated her differently because she’s divorced and mixed-race.

The insider said that this is why the Duchess of Sussex overreacts sometimes. Unlike Middleton, Markle doesn’t have a way with people.