"I am sorry," Jon Gosselin, 35, tells ex-wife Kate, 37, in a blanket apology for his behavior since the couple's idyllic Wyomissing life was shattered in '09. "I am sorry," he says via People mag, "because I did stuff I wouldn't want done to me." By "stuff," Jon means the torrent of déclassé chicks he so publicly dated after the breakup, which no doubt deeply affected their eight kids and landed reality-show maven Kate without a viable source of TV income.

Jon also accepts his share of responsibility for the collapse of their 10-year marriage. "I was passive-aggressive," he says. "Then I'd get mad, but I was the one who wasn't communicating." Jon, who lives in Berks County, says he has a steady job and a steady gal, single mom Liz Jannetta, 27.

He's had therapy and gotten soul advice from Michael Jackson's guru, Rabbi Shmuley Boteach. Jon quotes Boteach: "?‘There are two things you can do with your fame — sell out or take it and use it for good.' I didn't grasp that at the time."

Celebs date & mate

Former Sports Illustrated Swimsuit Issue sensation Molly Sims, 39, and hub, film producer Scott Stuber, have welcomed their first child, a boy.

Anna Faris, 35, and hub Chris Pratt, 32, are expecting a baby boy, Life & Style Weekly says.

Twice-divorced "To be Loved by You" and "No One Else on Earth" singer Wynonna Judd, 48, wore a white Houri Barahimi gown to wed hubbie No. 3, Cactus Moser, 55, the drummer for her band, The Big Noise, at a sunset ceremony on her farm in Leiper's Fork, Tenn., she tells Us Weekly in an Exclusive! "I felt a joy that hasn't been there before," she says.

A celeb who abstains

Bristol Palin, 21, whose status as a single pregnant teen made headlines during mom Sarah Palin's vice presidential run in '08, won't have sex (again) until she's married.

The Dancing With The Stars sensation tells In Touch Weekly she and bf Gino Paoletti, 21, a pipeline worker, will abstain until they wed.

"I'm doing what's best for me. It's between me and God, and I know it's right," she says.

"My sister Willow is 17, and when I was her age, I was eight months pregnant, and I look at her and I think, 'Holy cow, I was just a baby!' "

Graham Nash, the artist, at the shore

Crosby, Stills, Nash & Young's Graham Nash, 70, will visit Ocean Galleries in Stone Harbor July 1 from 7 to 10 p.m. to plug his paintings, which will be on show June 28 to July 8. Info: www.oceangalleries.com/.

Britney Spears: A fair yet tough jurist

She wants to be honest to the hundreds of young folk who sing and dance and rap before her at X Factor auditions. Yet Britney Spears says she's also careful not to crush the would-be contestants' dreams. "Sometimes it's hard because I know what they've been through," says Brit. "It's such a subtle and delicate situation."

Underwood gay marriage backlash

Carrie Underwood angered fans last week when she spoke in favor of gay marriage. The American Idol legend says she supports the right of people to love, then adds she'd rather stay out of politics. "I was asked a difficult question ... and I answered it the best way I knew how," she says, "and after that I do what I do and I love making music and I generally try to stay out of any kind of controversy."

Today in showbiz biz buzz

In news sure to drive connoisseurs of fine cinema to despair, even suicide, Jim Carrey tells Entertainment Tonight he is pulling out of a planned sequel to to his 1994 classic Dumb & Dumber, citing lack of enthusiasm and support from the studio.

Tidbits 'n' pieces

Alec Baldwin, who socked a photog in the kisser the other day, ran his bicycle over a TV reporter's foot Wednesday as he tried to flee from a phalanx of journos camped out outside his East Village apartment in NYC. "He shoved me and ran over my foot," the New York Daily News quotes the unidentified woman as saying. ... Charlie Sheen tells Playboy he's ready to retire from showbiz. (But surely not from his position as a Warlock ninja assassin?) ... Cee Lo Green will play Boardwalk Hall in Atlantic City on July 27 as part of his summer tour. Info at www.ticketmaster.com/. ... She may look drop-dead gorgeous in her S&M-inspired Catwoman suit, but The Dark Knight Rises star Anne Hathaway says being inside the thing was sheer murder. It "was a psychological terrorist," she tells Allure mag. ... Kate Middleton's royal hon Prince William will inherit $15.5 mil on his 30th birthday Thursday. It's his share of his late mom Princess Diana's estate.

Quote du jour: Bieber, love doctor

Dying to know how Justin Bieber landed Selena Gomez as a gf? The studly singer has decided to share his dating secrets. "Just be nice to your lady," Bieber tells Celebuzz.com. "And treat her with respect, and she will do the same to you."

Contact "SideShow" at sideshow@phillynews.com. This article contains information from Inquirer wire services.