Royal Butler reveals Kate's ignored moment at Prince William's birthday party.

William and Kate met at St Andrews University in 2001.

They dated for 10 years before marrying in 2011.

They have three kids: George, Charlotte, and Louis.

After Queen Elizabeth II's death, they became Prince and Princess of Wales.

They keep their Cambridge titles and inherit Cornwall titles from Charles and Camilla.

William is now first in line to the throne, with George as second.

Butler: William and Kate were like any other couple in love.

Butler considers himself privileged to be around the brilliant and fun couple.