Since that loved-up engagement photocall at Kensington Palace there's been some pretty intense hand-holding, arm linking and even back rubbing (scandalous). The couple are also big on affectionate side-glances and eye contact. On their tour of Australia in October, Meghan looking lovingly at Harry as she held an umbrella for him in the rain.
A year on from their wedding on May 19, 2018, the couple’s lives have changed with the arrival of their son Archie Harrison Mountbatten-Windsor. Archie, who arrived just in time to celebrate his parents' first wedding anniversary, was introduced to the world earlier this May. The new parents appeared just as loved up as ever during a photocall in Windsor, where they laughed and smiled at one another as Harry held their baby in his arms.
The pair have also been travelling a lot this year and during their Moroccan tour, took a brief moment to cuddle up while visiting a secondary school football tournament.
Harry was also caught on camera fixing Meghan’s hair for her, after her ponytail was caught underneath the collar of her blazer.
The pair also looked just as close on night's out at Cirque du Soleil and the Natural History Museum.
Their kiss for the cameras at a polo tournament in 2018 was one of their most romantic moments yet - even if it did spark an onslaught of memes about the poor bystander.
And of course, there's no forgetting their ultimate day of PDA: their beautiful wedding.
In contrast, Harry's brother Prince William and his wife Kate Middleton are more restrained in front of the cameras, with a few notable exceptions. According to royal expert Myka Meier, who currently teaches etiquette classes at The Plaza Hotel, it’s because there's more pressure on William to adhere to royal protocol as he's 2nd in line to the throne.
With Prince Harry the rules are more relaxed. “There is no protocol that says [Harry and Meghan] cannot show affection on official engagements, and these gestures make them relatable and lovable to the public,” Meier told People.
Prince Harry's easy relationship with his wife reflects a generally more modern, open approach he's adopting as a young royal - whether he's speaking openly about mental health or kissing the hand of a well wisher in Brighton.