The bond between Kate Middleton and Prince William was visible to everybody around them from the outset.

In college, the Duke of Cambridge fell in love with her after seeing her walk a fashion show in what we can all agree was a very iconic costume.  From the start, he was completely SMITTEN.

The royal pair met in 2001 at the University of St. Andrews in Scotland and dated for a decade before marrying at Westminster Abbey in 2011. (via Page Six). Since then, the couple has welcomed three children, George, Charlotte, and Louis, and they are still going strong.

Laura Warshauer, a New Jersey native and St. Andrews student who shared a dorm with the couple, tells PEOPLE in the new special edition William & Kate: 10 Joyous Years.

“Whenever Kate was in the room, Will was obviously paying attention to her,” Warshauer continues. “When we’d be sitting at lunch in the dining hall and the two of them would be talking, it was amazing to see how natural it was, how they had so much to say to each other. Looking back, there were all these small moments—certainly moments where I was like, ‘Wow, this could really be something.'”

According to People, during their engagement interview, they discussed their undergraduate days together, with Kate adding, “I actually think I went bright red when I met you and sort of scuttled off, feeling very shy about meeting you. It did take a bit of time for us to get to know each other but we did become very close friends from quite early.”

The former classmate spoke about “how [Will and Kate] had so much to say to each other.”  Even now, the two royals can make each other laugh at charitable events, while playing sports and displaying their relationship.

That natural ease with one another is even more apparent now, as viewers can see in their debut YouTube video, which shows the parents of three joking and playfully teasing one another.

“By the way, be careful what you say now because these guys, they’re filming everything,” William said, pointing to the camera.

“I know!” Kate responded with a laugh.

The two completed college together in 2005 then split up for a few months in 2007.

William and Kate’s relationship looked to be on track again in July 2007, when she attended a memorial concert in London for William’s late mother, Princess Diana. Kate was seen alongside William, his younger brother, Prince Harry, and Harry’s then-girlfriend Chelsy Davy in the royal box.

Following their reconciliation, Kate openly supported her man, notably during his graduation from Royal Air Force training in April 2008.

William proposed to Kate in Kenya in 2010 with his late mother Diana’s sapphire ring, paving the way for their 2011 wedding.

Today, Kate is preparing for her position as queen (via Cheat Sheet), as the couple continues to demonstrate how solid their bond has always been.