Sandra Bullock will not be attending the Nickelodeon Kids’ Choice Awards in Los Angeles on Saturday, her rep says. The actress remains in hiding since allegations that her husband, Jesse James, cheated on her.

“She’s devastated. She’s beyond upset. And she has every right to be,” a source told RadarOnline.com. “She was on top of the world with her Oscar victory and now this. It’s such a difficult thing to deal with.”

The Blind Side star has not returned to the house she shared with Jesse and she has canceled her overseas public appearances to promote the movie that won her an Oscar just weeks ago.

Visit RadarOnline.com for more on how Sandra is dealing with the cheating scandal.