David Duchovny swears that while he may be a philandering artist at work, he’s not one at home. The Californication star this week sued Britain’s Daily Mail for the profile it ran of his tennis pro, Edit Pakay, in which she said the two of them had a very close relationship. When asked if they’d had a full-fledged affair, Pakay said she wouldn’t deny it.

Duchovny recently finished rehab for sex addiction. Soon after, he and wife of 11 years Tea Leoni announced a formal separation. They’d apparently split up months before.

DD’s lawyer is asking for at least $1 million in damages and says Pakay signed a sworn statement that she and the actor were close friends and on-court partners — nothing more. The suit says the British tabloid acted hastily and published the story even though there was doubt as to its truthfulness. E! has the full legal document here.

If the story was indeed false, the Mail may have problems. But if the info is true, and they can prove that in spite of Pakay’s statement, DD’s in a world of hurt. Maybe Californication creator Tom Kapinos should follow his star around after work — he’d find plenty of inspiration for Hank Moody’s future shenanigans.

David, David, David. First the revelation that you’re a sex addict. Then the news you split with your wife of 11 years. Now we learn you may — possibly, perhaps — have been schtupping your tennis pro?

Really, for such a smart man you sure are making some bad choices. You may not be saying anything about the state of your marriage or your stint in rehab for sex addiction, but Edit Pakay, the woman who coached you on your tennis game, tells The Mail on Sunday that she “won’t deny” you had an affair.

The 28-year-old Hungarian hottie seems to know you pretty well — praising your intelligence and kindness — but she doesn’t seem to have a sense of whether you’re using her or not. She describes your relationship as a very, very close friendship. Asked if it was an affair, she says “I don’t want to say anything that might hurt David. I am not going to deny it. I don’t know what our relationship means to him.”

She’s smitten, David, and she looks just like your wife, but with darker hair. A psychologist might have something interesting to say on that front. Your publicist, of course, denies that you had a relationship with her. But she sure appears to have strong feelings for you: “People joke about having affairs with their tennis coach and I’m the tennis coach,” she says. “But I don’t want to become the butt of jokes. My feelings for him mean much more than that.”

What’s next, David? Will you take a cue from Hank Moody and dive into debauchery? Or keep your act clean, staying away from booze, sex and all that jazz? Is that even possible, given what a day on the Californication set must be like?

We’re rooting for you, but this string of news is worrisome. After all, we’ve seen you embody middle-aged self destruction for two seasons. You play the role well; almost too well. Please, for the sake of your fans, get it together man!