Kate Middleton didn't see her engagement to Prince William coming. After the future king of England got down on one knee in 2010, the Princess of Wales admitted the proposal took her off guard. "It was a total shock when it came," Kate admitted during the couple's engagement interview with ITV News. "There's a true romantic in there." @itvnews 15 years on from William and Kate's engagement announcement - on Talking Royals, our experts discuss how their relationship has developed over the years and look back on the day they gave their first interview as an engaged couple.