Pictured: Loved-up Prince Harry kisses Meghan Markle during Invictus Games closing ceremony
After a declaration of love and a public appearance hand-in-hand, little more confirmation was needed that Prince Harry and Meghan Markle were the real thing.
But on Saturday night, there was the most public display of affection yet as the prince left his official seat at the Invictus Games closing ceremony to join his girlfriend - and sneak in a kiss at the same time.
He also seems to be part of the family after Ms Markle supported her boyfriend at the high profile event with her mother by her side.
The American actress and her mother Doria Radlan tucked themselves tactfully away from the limelight in a box at the Air Canada Centre, on the opposite side of the stadium from the Prince and other dignitaries.
While her boyfriend mingled with guests including Canadian First Lady Sophie Gregoire Trudeau, Ms Markle, her mother and two friends enjoyed themselves high above the stage.
Arriving separately, the Prince busied himself with official business, shaking hands with competitors on stage as the audience settled in.
Within minutes of the closing ceremony beginning, Ms Markle was spotted in an distinctive white coat cheering from the stands.
Prince Harry later disappeared from his official seat, slipping out to join Ms Markle, her mother and friends Jessica Mulroney and Markus Anderson to watch part of the ceremony away from the spotlight.
As guests enjoyed music from Bruce Springsteen and Bryan Adams, the Prince was seen sneaking a kiss on his girlfriend's cheek.
Closing the Invictus Games, Prince Harry finally took to the stage alone to deliver a message to competitors as Ms Markle and her mother clapped enthusiastically.
"Right now you’re on a high," he told them. "At the summit of a mountain many of you thought was too high to climb.
"You have done it. This is the moment, right here, right now, shoulder to shoulder.
"You are Invictus."
Warning it may be "tough" to go home after the excitement of the Games, the Prince challenged athletes to set a new goal "to help lift up all those around you".
Next year, he said, he hoped to see new competitors who had watched the event from home and finally felt able to begin their recovery from physical or mental illness with a view to take part in the Sydney Invictus Games.
After he waved goodbye to the crowd at the 19,000-seat stadium, his girlfriend and her three companions were seen to leave their box to make a quiet getaway.
It is the third event she has attended at the Invictus Games in her home town of Toronto, following the opening ceremony a week ago where she also sat apart from Prince Harry.
On Monday, the couple finally took the plunge and, hand-in-hand, walked out in front of the world's media for an affectionate appearance to watch the wheelchair tennis.
Ms Radlan is a social worker and yoga instructor and is understood to have met Prince Harry previously.
She is reported to have flown from her LA home to London with her daughter earlier this year, to see the sights in Prince Harry's home country.
Her public appearance to watch the Prince at work during his Invictus Games is the latest in a series of recent signs confirming the serious nature of his relationship with Ms Markle.
After an extraordinary interview with Vanity Fair, in which the actress confirmed they are "in love", the pair are widely expected to announce an engagement in the coming months.