PALS FEAR FOR HOMEBODY BEATTY

Aging legend stays in as wife Annette works & plays

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Beatty hates socializing and prefers to hang out at home, sources say

RECLUSIVE Warren Beatty has become a hermit, locking himself away in his lavish mansion in the Hollywood Hills, and it's got pals more worried than ever about his sad decline, a source tells GLOBE.

The once legendary lothario, 88, lives a solitary existence while his wife, Annette Bening, who's two decades younger at 67, is constantly on the go, pursuing a busy career and active social life, the insider says.

Warren celebrated his birthday at home with Isabel and Ben