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