Jonny Fairplay -- the most hated "
Survivor" villain of all time -- tells TMZ his super-hot "
America's Next Top Model" star wife has walked out on their marriage ... and she took their kid with her.

Fairplay -- real name Jon Dalton -- says
Michelle Deighton called it quits a couple of weeks ago ... but she didn't give him a REAL reason for the split ... only that she just doesn't want to be with him anymore.
Jonny tells us, he already filed for legal separation in North Carolina -- and plans to fight for full custody of their daughter.

It's not the first time Jonny's been tossed aside ... back in 2007,
Danny Bonaduce launched him into a painful faceplant during an awards show ... and Jonny ended up in the hospital.
For all the nonexistent people out there wanting a keepsake from the Danny Bonaduce/Jonny Fairplay fight at the Fox Reality Awards back in 2007... this is the moment you've long been waiting for.

Fairplay is getting rid of the jacket he was wearing when Danny Bonaduce de-toothed him -- by hawking it on eBay. Jonny's listing says: "It was my favorite hoodie but I look at it now of course with bad memories."
Why it took him 16 months to sell it, we don't know... but we're guessing rent is due.
Danny Bonaduce made a bunch of MLB players jealous last night. He was legally allowed to hit steroid rat Jose Canseco in the face.

Fans who witnessed the fight (apparently due to a lack of high-speed car chases on TV) were treated to three rounds of punching and grunting, followed by a heart pounding majority decision -- draw.
Bonaduce, standing a foot shorter than Canseco, told The Post Chronicle, "Part of me says there's a decent man right there that didn't want to kill the little guy. I feel weird that we tied."
The last time Danny Bonaduce publicly beat someone's face in, he was
de-toothing Jonny Fairplay at an awards show. This time the fight was sanctioned, and he knocked out comedian Rev. Bob Levy during the second round of another "I sure could use some money" celebrity boxing match.
Danny Bonaduce was looking for a scandal last night -- and threatened to pull out his Partridge family jewels.
Thankfully, his much bigger head prevailed, and he instead briefed us on his 26-year-old
daughter gal pal.
TMZ caught Will Arnett in a humbling situation with NYC paps -- they didn't know who he was (Who is Zach???). Also in Gotham, a bundled and clammed-up Woody Harrelson, a glum Courteney Cox cracking a wee smile, and Ashlee Simpson debuted her album -- for reals, people -- for the crowd at Marquee (and brought to you by that famous nightlife fuel,
Caribou Iced Coffee.)
In LA: Heidi and Spencer getting their necessary pap fix on Robertson Blvd., Gummi Bear discussing his future business ventures and Danny Bonaduce loving TMZ!
Rehab-relapser Danny Bonaduce was
trollin' strollin' in Hollywood on Friday night and was out with a woman young enough to be his daughter -- except she wasn't.

Meet Bonaduce's rebound galpal,
Sara Rue Amy Railsback. The pair met in a Starbucks ten months ago. Keep this in mind: Danny's new girl was born eight years
after the final episode of "The Partridge Family" aired in March 1974.

After embarrassing photos of Danny's lil' partridge popped up on the net, the redheaded, rehabbed wreck promised he would prove how much of a grower he really is ... in the March issue of Penthouse.
Fortunately, for everyone, he didn't have the balls to do it.
The legendary drama that unfolded at the FOX Reality Channel Really Awards in October -- when Dr. Danny Bonaduce performed some
impromptu dental work on Jonny Fairplay -- could have gotten a lot worse. Or better ...
TMZ ran into Danny Lee Clark, a.k.a. Nitro from the former (and current) "American Gladiators," who attended the event with Fairplay -- but left early because, as he put it, he was "drunk."
Nitro told TMZ who he would have hit -- if he hadn't hit the bottle!
Paris Hilton took her fresh-out-the-pizza-shop beau, Swede hottie Alex Vaggo, to dinner with the Hilton family last night -- and Sexy Lexy was a hit!
Man-throwin' Danny Bonaduce is fumin' over a recent nude pic that showed the little guy and his -- little guy. In fact, the former Partridge is so steamed about his Internet circulated bird shot, he's decided to show the world what he's really made of -- in the March issue of Penthouse. Can Danny improve on nature?

A rep from Penthouse confirmed to TMZ that Danny did an interview with Chaunce Hayden, and, God help us, a photo shoot. The issue features the Pet of the Year -- and subscribers are sure to get a
little more bang for their buck.