Kate Middleton and Prince William are "more open" and "talk about their relationship together" amid her cancer journey, a source tells PEOPLE.

A source close to the royal family commented on the pair's marriage following Middleton's latest health update.

Prince William and Princess Kate famously met and fell in love during their time at St Andrews University. And on the day of their joint graduation, the Vice Chancellor made a prophetic comment

Prince William traveled to Monaco in the south of France solo on Jan. 21 to watch his beloved soccer team Aston Villa take on AS Monaco in the UEFA Champions League.

Prince William and Kate Middleton's relationship has evolved with them being "more open" with each other after

Kate Middleton, who is celebrating her 43rd birthday on Jan. 9, has proven herself to be the shiniest jewel of the British monarchy. The princess is married to Prince William, heir to the throne.

According to the Mail on Sunday, Kate celebrated the new year by taking a skiing vacation in the Alps. Kate was joined on the trip, which reportedly happens "just over two weeks ago," by her husband, Prince William, and their three children, Prince George, 11, Princess Charlotte, 9, and Prince Louis, 6.

The Prince of Wales wrote that he and the couple’s three kids — Prince George, Princess Charlotte and Prince Louis — “are so proud” of Middleton.

Kate Middleton can now give British business her seal of approval, literally. The Princess of Wales, Kate Middleton is known to be a favorite amongst all royals and enjoys the approval of the general public the most.

This year will be Prince William's 20th as patron for Centrepoint, a charity dedicated to helping homeless youth

William first visited the charity with his mother three decades ago. Prince William made a royal appearance today with a visit to the U.K. charity, Centrepoint. The visit marked a continuation of the charitable work done by his late mother,