They are reported to be heading for divorce, with news of the impending split dividing their family, but a source close to the situation tells Breaking Celebrity News exclusively that Kris and Bruce Jenner's marriage has been all but over for a long time.

The reality TV couple continue to put on a brave face for the cameras but the source says the husband and wife duo are living separate lives and that their marriage has become "all about business" rather than love.

"The romance went out of their marriage years ago," the insider tells Radar. "Their relationship is now all about business."

In fact, the source says that if it wasn't for all their joint ventures, including multi-million dollar properties and the wildly successful Keeping Up With The Kardashians show, the pair -- who have been married for 21 years -- would have split up a long time ago.

"They have become a brand and both fear that they will lose their fame if they separate," says the source. "They are staying together now pretty much just for career purposes."

As previously reported, according to the new issue of Star magazine, Bruce is currently in the process of moving himself and their two youngest daughters, Kylie, 15 and Kendall, 17 out of the family home in Calabasas, CA.

Kris and Bruce reportedly had a huge fight over the