“Giving a relationship time and space to breath will only help to serve strengthen the bond between a man and a woman” is the main cause of Prince William and Kate Middleton's romantic relation.
Though there were bit of ups and downs, their relation has stood the test of time and has proved to the world that they are best for each other.
They belong to different backgrounds but have very gud understanding of each other, which is the base of any strong relationship. They are now the Duke and Duchess of Cambridge.