Sanders who met Stewart on the sets of his film "Snow White and The Huntsman" and confessed of having a fling with the "Twilight" star after intimate pictures of him and Stewart came out last month, reported Aceshowbiz.
Ross, Sanders' wife of seven years, is "devastated" of her husband's affair. The couple have two young children together.
"They seemed like a perfectly happy family. This was devastating for her," a source said.
Meanwhile, Stewart and Pattinson have each moved out of the house they shared.
