A palace source says the marriage of Prince Charles and Princess Diana is a loveless one.

"I believe that the marriage is stone dead," the source told People magazine. "I don't think there is animosity between them - it's worse than that. They just don't care anymore. It's just indifference."Anthony Holden, author of two books on Charles, says Britain's future king has been behaving strangely in recent years.

"He withdrew from society for an abnormally long time," Holden says. "What Charles has done amounts to an indifference to public opinion that I regard as irresponsible. Politicians have lost their careers for less."

Despite all the talk, no one is expecting a royal divorce.