Before Prince William became the familiar and serious man we know today, he has had his own romance. In a book published about the lives of royal family members, she is more confessed to a romance the prince had before he met Kate. The lover of the prince of that time is called Arabella Musgrave, which is today the PR of Gucci. Arabella is a very beautiful girl and very well we scratch why she had stolen William's heart.
According to the book, they were very much in love and spent a lot of time together. Even after he went to college, William always came back to the weekend to spend time with his girlfriend. Then in college he recognized Kate and we do not know what happened to his story with Arabella, but we know that both her and the prince are happily married today.