People Magazine has more insider dirt from Shaina Twain’s divorce after 14 years. I’ve said for a while that it seems like Shania is leaking the story to People herself, because they have too many insider details and she’s a woman who was wronged and isn’t about to let her husband and his mistress get away with it. Now People has a denial from the other woman. Shania’s husband “Mutt” Lange denied the affair in an earlier statement, saying that he and Shania grew apart. It sounds they pressed the alleged mistress for an answer though, because her first statement was evasive. Plus People claims to have “several sources close to the situation” who vouch for the fact that Shania’s husband cheated with this woman, who was one of Shania’s close friends in Switzerland along with managing their estate and serving as -ahem- secretary to her husband:

Speaking publicly for the first time since the news of the alleged affair became public, Marie-Anne Thiébaud, 37, told PEOPLE, “You cannot believe everything you read in the press.” When asked directly if she had an affair with Twain’s husband, music producer Robert “Mutt” Lange, she replied, “No.”

That contradicts several sources close to the situation, who say Thiébaud and Lange left their spouses for each other and continue to maintain a romantic relationship. Twain, 42, and Lange, 59, who have a 6-year-old son, Eja, announced their separation May 15. Since then, the “You’re Still the One” singer – “devastated” by the revelations, according to sources – has sought refuge with family in her native Canada.

Thiébaud began working for the ultra-private couple after they moved to Switzerland in 2000, acting as their personal assistant, secretary and manager of their vast château. By all accounts, she became one of Twain’s closest confidants. The two attended the 2006 Swiss Red Cross Ball together (PEOPLE’s exclusive first photos of Thiébaud showed the pair at the event, posing together and smiling).

[From People.com]

Maybe the mistress, who was also married when she began the alleged affair with Shania’s husband, doesn’t think it’s cheating if they were each having problems with their other relationships. Or maybe the woman has no qualms about lying to the press. Why would Shania smear this person and her husband if they weren’t cheating? I believe her, but it’s also between her and her husband and we have no way of verifying the story. They have a six year-old son together though and he’s bound to read all about this when he’s of age. Still, I would probably do the same thing if I was in Shania’s position. (As much as I like to think I would take the high road.)

Picture note: The photo that’s on the front page of the site and leads into this story is of Shania at the “Walk The Line” premiere in 2005.