According to an expert, Prince William and Kate Middleton are exactly like any other marriage.
At home, the Prince and Princess of Wales have endearing nicknames for one another.
According to Tom Quinn, author of "Gilded Youth: An Intimate History of Growing Up in the Royal Family," William affectionately refers to his wife as "babe," "Duchess of Doolittle," and "Babykins."
The future Queen and King, like any other marriage, argue in the midst of their difficult existence as senior members of the Royal Family.
Mr Quinn continues, "Kate and William may appear to be very calm people." However, this is not always the case. Because William and Kate are always surrounded by [palace aides], this is a major source of stress for them. It's like something out of a Jane Austen novel."
Catherine is "very much the calm one," he says, whereas William is "a bit hot-headed" and "hates confrontation."