By Saffron Otter It has been a difficult few weeks forPrince William and Queen Camilla as they have seen their loved ones in hospital over health problems. But being without their significant others has brought the pair closer together, according to a royal expert. Buckingham Palace confirmed tonight that King Charles has been diagnosed with cancer and will undergo immediate treatment – which follows a diagnosis last month of an enlarged prostate. The monarch spent three days in hospital after undergoing a medical procedure for the benign condition. It was during this intervention that a separ…