Kate Middleton and Queen Elizabeth II
Kate Middleton was reportedly “very hurt” with Queen Elizabeth’s early criticism about her lifestyle. Pictured: Middleton and Queen Elizabeth II watch a fashion show at De Montfort University on March 8, 2012 in Leicester, England. Getty Images/Oli Scarff

Kate Middleton was reportedly very hurt because of Queen Elizabeth II’s previous criticism about her lifestyle before joining the royal family.

Royal biographer Katie Nicholl revealed in her book, “The Making of a Royal Romance,” that the monarch was concerned about the Duchess of Cambridge’s lifestyle before she married Prince William. The Queen apparently found Middleton’s “frivolous displays of wealth unpalatable.”

At the time, Middleton had no full-time work and was reportedly always partying. She and her pals were always vacationing in Mustique, so much so that Middleton was even dubbed “Queen of Mustique.”

Kayleigh Roberts, a journalist at Marie Claire, claimed that Middleton was reportedly “super hurt” by the comments of the Queen about her lifestyle. However, she was advised to “hold her tongue” because it was a bad idea to talk back to her future grandmother-in-law.

To help Middleton improve her reputation, the Queen reportedly advised her to get involved with Starlight, a charity that works with terminally ill children, and this seemed to do the trick. Queen Elizabeth II and Middleton’s relationship has since improved.

While the monarch may have once disapproved of her antics, Ashley Pearson claimed on the Amazon Prime documentary, “William & Kate: The Journey,” that Queen Elizabeth II was “very fond” of Middleton’s values. “She likes her middle-class values,” Pearson explained. “She likes that she's close to her family.”

In addition, Middleton never tried to garner extra attention for herself. There’s nothing flashy or showy with the duchess.

“Kate tows the company line all the time, and that's something that Queen Elizabeth very much wanted from Diana – which didn't happen,” Pearson continued, adding that the monarch also wanted this from Sarah Ferguson but was disappointed by the Duchess of York.

However, some felt that the monarch loves Meghan Markle more than she does the Duchess of Cambridge. Earlier this year, Queen Elizabeth II gave the Duchess of Sussex four patronages that include the Association of Commonwealth Universities, animal charity Mayhew, Smart Works for unemployed women and The National Theater.

When Middleton initially joined the royal family, Her Majesty only gave her one patronage, the Royal Foundation, and she shared the honor with Prince William and Prince Harry. A number of netizens were also disappointed with Middleton because she’s been with the royal family for eight years already but compared to Markle, she has done too little in her position of powet. One Twitter user even dubbed the Duchess of Cambridge “duchess do little.”