It’s not exactly a secret thatPrincess Diana’s marriage to the future King Charles IIIwas troubled.

Speaking of her former lover, James Hewitt, Diana divulged, “Yes, I adored him.

Yes, I was in love with him.

Charles and Diana kiss

But I was very let down” (viaPBS).

You never knew what mood it was going to be."

During the high points of this unusual relationship, the couple could actually seem happy.

Charles rubs Diana’s shoulders

Sometimes, on official engagements, they would even indulge in PDA.

The then-prince was photographed offering his arm to the bride-to-be and leading her through the palace gardens.

Once, they posed for a picture within the walls of Buckingham Palace, along with Queen Elizabeth II.

Charles offers Diana his arm

According to Brown, the then-prince felt totally comfortable in this moment.

She explained, “Charles?

He is in his element here.”

Charles and Diana yacht

Apparently, though, the same could not be said for Diana.

In this moment, she’s not engaged in the situation.

We see her hand kind of drape here.

Charles and Diana Balmoral

There’s not reassurance or support or anything to show commitment behind that.

There’s no certainty."

I can’t do this.'"

Charles and Diana during pregnancy

Compared to the wedding as a whole, though, this was nothing.

The moment captured the imaginations of people worldwide.

In fact, theDaily Mailreports that this massive smooch was even voted the most famous embrace in British history.

Diana and Charles dance

Sadly, though, this kiss was not everything that it seemed to be.

Thus, Charles and Diana’s famous kiss was memorable because it had to be.

The prince, after all, needed to make up for his public failure at the altar.

Charles and Diana hold hands

But, for King Charles III and Princess Diana, things did not exactly go down that way.

Out [of Charles' personal calendar] comes two pictures of Camilla."

On one occasion, Charles and Diana were photographed holding hands aboard the Britannia’s deck.

Diana and Charles smooching

As nonverbal communication specialist, Traci Brown, toldToday, this moment shows the couple’s failure to connect.

One of her arms is behind her back.

After their seafaring adventures, the duo headed off to Balmoral to enjoy time with Charles' family.

Diana and Charles kiss

He has his arm and hand, between her legs.

It’s very intimate.

As Diana spent more and more time in Balmoral, the princess found herself feeling increasingly forlorn.

On top of that, the princess apparently felt that Charles was keeping his distance from her.

Per Seward, “She felt that her husband avoided intimate contact.”

When Diana realized that she was expectingPrince Williamin 1981, she reportedly grew quite a bit closer to Charles.

Apparently, the princess viewed the baby as a “godsend.”

One photo of the escapade shows Charles wrapping an arm around Diana as the pair entered the ocean.

Other shots captured the couple kissing passionately on the sand.

For at least a time, the Waleses were happy.

As we know, though, Charles and Diana’s marital bliss was hardly permanent.

Shortly after the couple returned to England, Diana is said to have fought frequently with her husband.

This, ultimately, added strain to their relationship.

During this trip, Charles and Diana were spotted in moments of discontent.

At the Uluru, a famous Australian geological structure,the couple were photographed hikingwith several meters between them.

Far from the glowing couple that they tried to portray themselves to be, both parties looked absolutely stormy.

That being said, Charles and Diana’s trip to Australia arguably reflected more positive moments than negative ones.

He’s not going away from her, which is nice.

The thing that you don’t see often is that she’s just so lifted up and happy."

There were times when he would even squeeze it, even in Australia" (viaDaily Mail).

True happiness comes from your eyes.

You smile with your eyes the mouth is kind of an afterthought."

Speaking to Today, Patti Wood largely agreed with Brown’s analysis.

And, apparently, the couple’s shared emotional state would have strengthened their relationship.

As Wood relayed, “They are happy and they’re sharing that happiness.”

Reflecting on this time, Diana would later recall, “Anyway, Harry appeared by miracle.

The closest we’ve ever, ever been and ever will have been.”

According to Diana, “Suddenly, as Harry was born, it just went bang.

The whole thing went down the drain.”

‘Oh it’s a boy,’ he said, ‘and he’s even got rusty hair’.

With these dismissive remarks he left to play polo" (viaExpress).

To many members of the public, this smooch would have seemed fairly normal.

However, royal body language expert, Judi James, has expressed a different opinion.