I'm the Princess of Wales; He's a Prince of Belgium

It's the Summer of 2012 in England. Fifteen years have passed since Diana, Princess of Wales' tragic death. Her beloved children survive without her, leaning on one another to get through the roller coaster that is life. But they are children no longer; Prince William married his sweetheart Catherine Middleton last year, Prince Harry has been to war and is preparing once again for deployment, and Princess Caroline is no longer the toddler that broke a nation's heart. The Princess of Wales is now in her second year at University.
But, the eyes of the world are once again upon London. The Summer Olympics have arrived. People are flocking to the city to see the famed sports; and this includes other royals. What will happen when a Royal Dinner is held at the palace? What will happen when the young Princess sees a certain Belgian prince? Will this be a fairytale that the world has coveted for?

Note: Story will start in the past and make its way to present day.