Kate Middleton and Prince William don't often hold hands or publicly show affection. An unwritten rule saying royals must act professionally could be why they rarely engage in PDA. During rare occasions, the pair's been seen holding hands or touching each other's backs.
"The likely reasoning is more that while traveling on a tour such as the India trip, technically the couple are working representatives of British Monarchy," she continues. "The couple are likely to show very little PDA, if any, to remain professional during their designated roles abroad."
The Prince and Princess of Wales are notoriously known for keeping physical touch with one another in public to a minimum but have recently ramped up their PDA's as they were spotted being affectionate at the Royal Ascot last week.
James also adds that while hand holding is seen as affectionate, the couple don't want to alienate those they are with, stating: "At their level, hand-holding could make them seem exclusive rather than professionally sociable too."
Allergies. If you or your partner have allergies, sharing a bed can exacerbate symptoms. Dust mites, pet dander and other allergens can accumulate in bedding and trigger allergic reactions. Princess Kate is said to suffer with hay fever, so her own bed could soothe her allergies.
It has been reported that the Queen and Prince Phillip didn't share a bed because of a tradition followed by the upper classes. Not only did the monarch and her husband not share a bed, but it's also believed that they each had separate bedrooms altogether.
According to Lady Pamela Hicks, Prince Philip's cousin, the aristocracy “always have separate bedrooms”. Lady Pamela explained the reason behind the tradition during talks for her biography of the Queen. She said: “In England, the upper class always have had separate bedrooms.”
The reason for this is simple, and one we're well familiar with in the future King and Queen Consort - it's all about protocol, with Royal etiquette expert Myker Meier telling People Magazine way back in 2016, 'There is no actual etiquette or royal protocol that says the couple must refrain from PDA.
While there's no bona fide restriction on PDA, royal family members tend to refrain while on official business for Her Majesty. Plus, our favorite royal pair is not the first to follow this unspoken rule. Queen Elizabeth II rarely holds hands with her husband Prince Philip in public, either, and for the same reason.
Kate and William have a great love for each other
Despite the ups and downs in their relationship, William and Kate are still very much in love and committed to each other.
Kate Middleton and Prince William don't often hold hands or publicly show affection. An unwritten rule saying royals must act professionally could be why they rarely engage in PDA. During rare occasions, the pair's been seen holding hands or touching each other's backs.
Kate first caught William's eye when she took part in a charity fashion show, wowing in a bikini and a sheer dress. The pair's friendship soon turned to romance, with William and Kate even sharing the same flat in the second year of university.
As this was a royal wedding, and Prince William is the Queen's grandson, the Queen had to give her permission.
The Queen has had a good relationship with Kate, her granddaughter-in-law, and sees her as "supporting William and getting on with her duties," said Prof Williams. However, she was reportedly concerned in the early days that Kate didn't have an identity of her own before marrying into the Royal Family.
Weeks later, in the year 2007, Middleton and William parted and sources later said that the Queen was disappointed by the breakup. But, the split was short-lived, as Middleton and William were seen together at an army party at barracks in Bovington, Dorset. But things changed over the period of time.
Prince Harry, in an interview ahead of the release of his memoir, revealed how he and his life changed for good after falling in love with Meghan Markle.
Myka Meier, the founder of Beaumont Etiquette and a royal etiquette expert, revealed to People that "there is no actual etiquette or royal protocol that says the couple must refrain from PDA." With that in mind, Meier told People in another interview that "it is rare to see royal couples holding hands on official ...
So in spite of my fear, I just opened my heart to see what's going to happen." Harry, who is fully in love with his wife, continued: "So much of how Meghan is, and how she is, is so similar to my mum.
But it seems as though there's a genuine reason for the Duchess's style choice. It turns out Kate Middleton has a large scar on her hair line, on the left side of her head. This scar has only ever been photographed once in the media, in 2011 when her hair was pulled back from her face.
Let's just assume, in that case, that being a busy working mum, Kate accidentally runs up minor injuries on a regular basis - just like anyone else. The only difference is, she can't leave her scratches and scabs out for the world to see, hence the large stock of Elastoplast products they evidently keep at the Palace.
Prince William and Kate Middleton seem to have a relationship like any other, and part of that is giving each other nicknames that only they can call each other. While Prince William calls Kate 'Duchess of Dolittle', she calls him 'Big Willy' and 'Baldy'.
King Charles and Queen Camilla are undoubtedly very much in love, with public appearances always seeing them laughing and joking together, but reports say the couple does not share a bed. There's no trouble in paradise, though. It's customary for royal couples to sleep in different bedrooms.
Royal couples reportedly have separate bedrooms
It's not just sleeping in the heat that can be improved by having a bed to yourself, though. The fact that Prince William and Princess Kate reportedly choose to have a bedroom each is likely to benefit the Princess of Wales' health all year round.
The monarch isn't a fan of a deep bath either, she is said to bathe in “no more than seven inches of water”, according to royal author Brian Hoey for the Daily Mail. Seven inches is equivalent to 17.8 centimetres.