Kim Porter has left the building -- Diddy's apartment building, that is. After 10 years of dating, three children together and three name changes on Diddy's part, it seems that the pair have decided to part ways.

"She is focusing on her career as a model and actress and raising her children," Page Six's source said, adding that Combs and Porter "are the best of friends, but they just can't be together right now."

Porter, 36, is reportedly taking their children (Christian, 10, and 7-month-old twins, D'Lila and Jessie) to Los Angeles, while Sean "Diddy" Combs, 37, is busy fighting those pesky Sienna Miller rumors. A representative for Combs denies that his relationship with Miller led to the couples demise. A rep for Miller also denies any romantic involvement with Diddy.

Read the full Diddy and Kim Porter split story.

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