Kate Middleton went through 'auditioning process' when meeting Prince William

As Kate Middleton and Prince William celebrating their 10th wedding anniversary, a royal editor shed light on her early years with the royal family. 

Royal editor Katie Nicholl shed light on why it took some time for her and William to get engaged despite years of dating.

"I think he knew from the early days that there was something very special in Kate. But he wanted to wait and he wanted to be sure," she said.

"She sort of gave you a little flash of their ring and everything. They introduced slowly, slowly.

"She had an auditioning process. She got used to this very strange life. It must be difficult to fit into that. As we've seen, lots of people don't."