UPDATE: Read Jesse James’ first public statement here.

Oh dear - the “Curse of the Best Actress” may have just struck again.

Although he was continuously praised by wife Sandra Bullock during the recent awards season (see above), it appears Jesse James might not have had her back after all.

Earlier today, reports of infidelity made its way through the gossip mill thanks to a report in In Touch Weekly. According to tattoo model Michelle “Bombshell” McGee, she and Jesse were intimate during the time Bullock was away filming The Blind Side.

McGee, who claims she was lead to believe the two were no longer together, said the affair started after she sent a friend request to James’ business, West Coast Choppers. “He started saying, ‘Do you want to hang out?’” she told the magazine.

While no one from either Bullock or James’ camp has confirmed the accusation, People sources claim Sandra moved out of their California home on Monday. Earlier today, Warner Bros. also mysteriously announced that the actress had canceled an appearance in London for her movie.

“Due to unforeseen personal reasons a trip abroad to support The Blind Side has been deemed impossible at this time,” the studio said in a statement. “I apologize for any inconvenience this may have caused and thank you for your continued support of the film.”

If Bullock and James do indeed separate, she would become the seventh Best Actress winner out of the last ten to split from her significant other after winning an Oscar. (In case you can’t keep track, those other six couples would be: Julia Roberts/Benjamin Bratt, Halle Berry/Eric Benet, Charlize Theron/Stuart Townsend, Hilary Swank/Chad Lowe, Reese Witherspoon/Ryan Phillippe and Kate Winslet/Sam Mendes.)