Page Six is claiming that David Duchovny’s mysterious sex addiction is to internet porn, but Rush and Molloy have a different story. The real reason David Duchovny has checked himself into pervert prison? He “wantonly” cheated on wife Tea Leoni with floozies on the set of “Californication”

Earlier this week [on FoxNews.com], a friend of Duchovny’s scoffed at claims that [he] was unfaithful to [his wife], suggesting that [Duchovny] was hooked on porn.

But The National Enquirer reports that Leoni “finally caught him [cheating]. Tea gave him an ultimatum: ‘Get treatment or our marriage is over. At first, Duchovny tried to lie his way out of trouble, but eventually was overwhelmed with guilt and confessed.”

US Weekly concurs that Duchovny “has a history of indiscretions,” [claiming] he put the moves on an extra on Californication. “They ended up making out,” alleges a source. “She later heard this wasn’t the first time he’d taken special interest in an extra.”

I don’t know what to believe. Wasn’t there an episode of the X-Files where this ESP guy who could see how people would die in the future told Mulder that “auto-erotic asphyxiation wasn’t the way to go?” That would suggest he was probably more of a chronic masturbator. But there was also an episode of Californication that was about him having sex with lots of different women as many times as possible. Pretty much the whole series, yeah. So, following that school of thought, he’d be a whoremonger.

But what to make of those episodes of The Red Shoe diaries where he was always pictured walking alone down a set of train tracks? I’d say all signs point to “hobo-killer,” possibly “runaway circus clown with schizophrenia.” That definitely makes the most sense here. Three cheers for deductive reasoning!