Kate Middleton and Meghan Markle
Kate Middleton and Meghan Markle's fans don't get along well. Pictured: Middleton and Markle attend day twelve of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on July 14, 2018 in London. Getty Images/Clive Manson

Kate Middleton and Meghan Markle have gained separate groups of followers who apparently don't get along with each other.

The Duchess of Cambridge and Duchess of Sussex have their own sets of fans that apparently have opposing views, according to royal expert Victoria Arbiter. In fact, the feud between the royal fans is reportedly visible on Twitter.

"It seems on social media that there are two very defined camps, there are the Cambridge fans and the Sussex fans and they don't seem to cross over terribly well," she told Express. "If Kate steps out and does something then all the Sussex fans start grumbling and vice versa, it's an extraordinary thing to see."

"When Kate went back to work last week the Meghan fans were criticizing saying she’s only come back for an hour and a half, it’s not enough time, Meghan’s doing more," Arbiter continued. "They just like to pit these two women against each other which is a shame because I think both women have got so much to offer."

Despite Middleton and Markle's royal fans attacking each other, Arbiter insisted that Middleton, Markle, Prince William and Prince Harry get along well with each other. In fact, the fab four are championing mental health together and are keen on getting along.

Since Markle joined the royal fold, a lot of Americans have become interested in the lives of the British royal family. They liken the British royals to celebrities or politicians.

On the other hand, Middleton's fans apparently show "some hero worship." They adore the Duchess of Cambridge's clothes and hair. They also appreciate how madly in love Prince William and Middleton are.

Despite the war between Middleton and Markle's fans, Arbiter insisted that there's no issue between the two royals, including their husbands. In fact, she believes that the Duke and Duchess of Cambridge are very welcoming to Prince Harry's wife.

"William and Harry are best friends, love each other dearly and are in each others corner no matter what," Arbiter added. "I think William and Kate will have done everything they can to make Meghan feel comfortable."

In related news, Markle has more to learn than Middleton in royal etiquette. This is because the Duchess of Sussex is American and she has a very different upbringing.

One of the things that the former "Suits" star can take cues from the Duchess of Cambridge is the proper way of doing hongi. Both have already done it before, but Markle didn't close her eyes like Middleton did.