Sandra Bullock has left the house. The Oscar winner, who is battling reports that her husband was cheating on her with multiple women, made a call Thursday on Gabriel Brener, a Beverly Hills investment honcho and friend of the actress. "She's not there on a business," a source told People. "They've been friends for decades." Bullock hasn't been seen in public since moving out of the house she shared with her husband on March 15. Her husband, television star Jesse James, has entered rehab.