Liberty Ross, Robert Pattinson and this "Twilight" fan aren't the only people upset with Kristen Stewart and married "Snow White and the Huntsman" director Rupert Sanders affair. Fellow "Snow White" actress Charlize Theron is reportedly "fuming" over the scandalous rendezvous.

Earlier this week photos from July 17 surfaced showing Stewart, 22, and Sanders, 41, in some intimate embraces. Now RadarOnline is reporting that Stewart's co-star, Charlize Theron, has "blown a gasket" over the 22-year-old's secret romance with the director.

"Charlize is absolutely fuming with Kristen for having an affair with Rupert," a source revealed to RadarOnline. "She is very tight with Liberty, has often socialized with the family over dinner and cannot believe Kristen has done this."

Rupert Sanders wife, Liberty Ross, had starred in "Snow White and the Huntsman" alongside Theron and Stewart as Queen Eleanor, Snow White's mother.

Theron didn't only become close with Ross while on set, the actress reportedly became very friendly with Stewart. According to RadarOnline, Theron felt like an older sister to the "Twilight" actress, even confiding her adoption plans to her and reportedly asking her to be baby Jackson's godmother.

"It's certainly left Charlize between a rock and a hard place, because she feels great sympathy for Liberty and the kids and yet, she has a sisterly love for Kristen," continued the source.

The sisterly love didn't seems to be enough for Stewart to confide in Theron about her affair with their director though. Stewart must have realized that she hurt more than Rupert Sanders family and her beau of four years, Robert Pattinson. In Stewart's apology released on Wednesday, the actress stated that she was "deeply sorry for the hurt and embarrassment I've caused to those close to me and everyone this has affected."

Stewart and Sanders affair became public earlier this week when Us Weekly published photos of the two kissing and embracing on July 17. Since then both guilty parties have released apologetic statements.

While Liberty Ross has kept relatively mum following the reveal of the affair, she was vocal about the "hard times" in her marriage prior to the public's knowledge of Stewart and Sanders secret rendezvous.

Ross previously told YOU magazine that her and Sanders "rode through the really hard times and we stuck it out." Ross, a British model, had left her career in London to move to Los Angeles with her husband, reports the New York Daily News.

"I went from the glamour of working with Karl Lagerfeld and John Galliano to living on an isolated hilltop, with my husband gone most of the time," she told YOU magazine.

Meanwhile, Rupert Sanders father Michael spoke to People magazine, telling them that his son's marriage "will survive this."

"This is nothing - they will definitely survive all of this," continued Michael Sanders. "It is all a lot of fuss about nothing."