Kristen Stewart and Rupert Sanders cheated for months, says Sanders' brother-in-law

kristen-stewart-rupert-sanders-cheating-pics-kissing-pictures-photos-gi.jpgIn her public apology, "Twilight" actress Kristen Stewart called her tryst with married "Snow White and the Huntsman" director Rupert Sanders a "momentary indiscretion," but Sanders' brother-in-law believes that's not the case.

"It was from the last half of filming and all through post-production, clear into last week," Leopold Ross, brother of Sanders' wife Liberty Ross, tells UK publication The People.

Leopold also talks about his sister's anger at Rupert, whom she met when she was a teenager, for uprooting her life in Britain to move to Hollywood, where she looked after the couple's children, Sklya Lily, 7, and Tennyson, 5.

"She made some sacrifices for something she thought was worth it, now she knows, right?" Leopold says. "It might actually make things better in the long run. She wasn't that happy for a while, but our family is close, she'll be all right."
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