Prince William and Duchess Kate's Love Through the Years

Prince William met Kate Middleton met when they were freshmen studying art history at St. Andrew's University in Scotland — and by the spring, they were searching for an apartment to share for their second year. They officially started dating in 2003 and lived together with two other friends until graduation, as pictured here, on June 23, 2005.

Post-college, Will joined the Royal Air Force while Kate worked in London. When he graduated from Sandhurst military academy on December 15, 2006, he cracked a smile as he was inspected along with the other cadets by his grandmother Queen Elizabeth II. Kate joined the royal family to watch in the stands, showing her gradual acceptance into the fold.

Just days after the pair appeared distant at the annual Cheltenham hunting festival March 13, 2007, William was photographed partying with other girls. The Sun reported they split. Kate spent the summer training for a charity race, working, and going out in London with Pippa.

Looking back on that time, Will said later, "We were both very young . . . we were both finding ourselves and being different characters. It was very much trying to find our own way and we were growing up so it was just a bit of space and it worked out for the better."

By June 2007, they reconciled. Kate secretly attended a party at his training barracks and the rest is history. "At the time I wasn't very happy about it, but actually it made me a stronger person, you find out things about yourself that maybe you hadn't realized," Kate later said of the break. "I think you can get quite consumed by a relationship when you're younger. I really valued that time for me as well, although I didn't think it at the time!"

The outdoorsy couple often escaped to ski in Klosters, Switzerland — Will first publicly kissed Kate on a 2006 trip there with her family — and are seen here on the slopes together on March 19, 2008.

For Prince William's graduation ceremony at the Central Flying School at RAF Cranwell, Kate proudly — and publicly — joined his family to celebrate on April 11, 2008.

For Prince William's 26th birthday, he and girlfriend Kate Middleton watched England beat New Zealand's team in a polo match at Beaufort Polo Club on June 21, 2008.

Though they were back together, Kate wasn't part of most official engagements. She cheered William and Harry from the lawn at a charity polo match on June 7, 2009, in Cirencester, England — but then quietly slipped out (sans Will) afterward.

Kate and William attended pals Harry Meade and Rosie Bradford's wedding at the Church of St. Peter and St. Paul on October 23, 2010, near Cheltenham, England.

On a trip to Kenya, Prince William proposed to Kate Middleton with his late mother's sapphire ring. The couple officially announced their engagement in St. James Palace on November 16, 2010, in London.

In a storybook ceremony, the prince and his bride said "I do" at Westminster Abbey on April 29, 2011. Catherine, now the Duchess of Cambridge, wore a custom Alexander McQueen gown. Afterward, she and Prince William, Duke of Cambridge, kissed on the balcony of the palace. Later, they honeymooned on a private island in the Seychelles.

Shortly after their wedding, the Duke and Duchess of Cambridge graciously hosted President Barack Obama and First Lady Michelle Obama at Buckingham Palace on May 24, 2011.

For a couple of weeks in 2011, the couple traveled through Canada and the United States on an official royal tour of North America. During the trip, the new Duke and Duchess of Cambridge proved how in sync they were by donning matching cowboy hats at the Calgary Stampede Parade on July 8, 2011.

The glamorous duo made an impression at the black-tie BAFTA event on July 9, 2011, as they wrapped up their American tour. Kate wore an Alexander McQueen gown and earrings on loan from the Queen for the event, where they chatted with stars like Jennifer Lopez and dined with Barbara Streisand and Nicole Kidman. "They make me smile," Kidman told USA Today. "I love them."

Back in the U.K., the newlyweds kept up with a busy schedule of royal duties — like a November 10, 2011, dinner reception for the National Memorial Arboretum Appeal at St James's Palace. (As a patron, the Duke of Cambridge launched the arboretum as a way to honor servicemen and women, veterans and their families.)

The newlyweds happily settled into life in Anglesey, North Wales, near William's base as an Royal Air Force air sea rescue pilot. (His fellow RAF call him Flight Lieutenant William Wales.) This is where they started to expand their family — adding a new cocker spaniel puppy, Lupo, who joined them on the beach near their rented cottage in January 2012.

In anticipation of the London Olympics later that summer, the fashionable couple attended a benefit concert at the Royal Albert Hall on May 11, 2012. But it was Kate who stole the show in an emerald Jenny Packham lace gown and matching clutch paired with Jimmy Choo platform sandals.

Hail, Brittania! The Duke and Duchess joined other excited fans to cheer on the track cycling team at the London Olympics on August 2, 2012. Even cuter: The couple's matching Olympics gear and joyful displays of affection after the team won the gold medal.

To mark his grandmother Queen Elizabeth II's Diamond Jubilee, the newlyweds traveled to parts of Asia for a few weeks during the fall of 2012. The couple even joined in to dance with local women at a Vaiku Falekaupule Ceremony in Funafuti, Tuvalu, on September 18, 2012.

After the Duchess of Cambridge was rushed to London's King Edward VII hospital for a bad bout of morning sickness, the couple decided to publicly announce their first pregnancy on December 6, 2012.

Once Kate started feeling better in her pregnancy, the royal couple started attending public events again. Here, they're celebrating the opening of the Warner Bros. Studios Leavesden in a recreated Diagon Alley from the Harry Potter films on April 26, 2013.