Don't expect Jesse James and Sandra Bullock to reconcile any time soon.
"Knowing the kind of person she is, I'd be shocked if she contemplated going back to him," a pal of the actress, 45, tells the new issue of Us Weekly as a fourth woman comes forward claiming an affair with James, 40.
Finding out that her husband of nearly five years cheated on her "is probably one of the most devastating pieces of information she’s ever gotten," Bullock’s close friend and longtime costumer Joel Voorhies tells UsMagazine.com.
PHOTOS: See scandalous snaps of one of Jesse James' alleged mistresses
Seconds another insider, "It's as bad as when her mom died in 1997. She just can't look at him and can't talk to him."
Bullock reportedly returned to Los Angeles Tuesday night after hiding out in Austin, Tex., according to unconfirmed Internet reports.
PHOTOS: Sandy and her 6-year-old stepdaughter, Sunny
"She feels embarrassed to show her face after giving that Oscar speech," the source adds. "He ruined her life."
PHOTOS: The post-Oscar split curse
"But don't feel sorry for Sandy," Voorhies says. "Sandy is one of the most intelligent, thoughtful, strong women. Everybody gets hurt. She will rise above it. She will make a decision that will work for her. This moment in time does not define who she is."
Sign up for Us Weekly's free, daily newsletter and never miss breaking news or exclusive stories about your favorite celebrities, TV shows and more!
For more – including the one person she called for support, the cruel way James demeaned his marriage to Bullock while wooing McGee and shocking details on James' disturbing Nazi connection – pick up the new Us Weekly today!
For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!