Leonardo DiCaprio and Bar Refaeli split up -- again

  Leonardo DiCaprio and girlfriend Bar Refaeli have broken up -- or have they?

DiCaprio, 36, and model Refaeli, 25, who have dated mostly on but sometimes off since 2006, "just grew apart and went their separate ways," a source told Page Six on Thursday, describing an amicable breakup late last week.

"Neither were ready to settle down," the source said, "and both have busy careers that have been taking them in different directions."

Refaeli and DiCaprio reportedly went in different directions while attending the Met Gala in New York on May 2, "Today" sources said.

But wait: "They do this every two years," an Us Weekly source said. "They could be back together next week."

The "Inception" star and Sports Illustrated hottie took six months off in 2009 -- coincidentally the year she was SI's swimsuit-edition cover girl.

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-- Christie D'Zurilla

Left photo: Model Bar Refaeli attends the "Alexander McQueen: Savage Beauty" Costume Institute Gala at the Metropolitan Museum of Art in New York on May 2, 2011. Credit: Larry Busacca / Getty Images

Right photo: Leonardo DiCaprio. Credit: Francois Guillot / AFP / Getty Images

Sports Illustrated Swimsuit 2011 cover model is Irina Shayk

 

The cover of the Sports Illustrated 2011 Swimsuit edition was revealed Monday night on "Late Night With David Letterman" -- and the star of this year's mag is one Irina Shayk.

Letterman's list, the "Top 10 Good Things About Appearing in the Sports Illustrated Swimsuit Edition," was delivered by 10 models featured in the sports mag's annual skin fest -- and Shayk caught our attention early with her Boris-and-Natasha delivery of No. 6: "When police officer ask me for ID, I say, 'Check Page 47.' "

Moments later, the 25-year-old model seemed a bit shy and surprised as her bodacious, swimsuit-clad body was revealed to all on a massive billboard at the corner of Broadway and 52nd Street in New York. She follows in the bikini strings of last year's cover girl, Brooklyn Decker. And yes, she found out during the taping that she got the cover.

Some more of our fave lines from the list:

Genevieve Morton: "All the body paint I can eat."

Julie Henderson: "Appearing on popular television shows ... and this one."

Alyssa Miller: "On tax form under occupation, I can write 'Hot.' "

There was also a Charlie Sheen joke in there, but please, Dave, these ladies are models, not, um, "actresses."

If your employer is cool with you peeping at scantily clad ladies during work hours, follow this link to pics of the lovely Ms. Shayk. We clicked to No. 16 before getting a little booty shot, so use your own judgment. And no, you can't have this job.

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-- Christie D'Zurilla

Photo: The cover of the Sports Illustrated 2011 Swimsuit edition featuring Irina Shayk. Credit: Bjorn Iooss / Sports Illustrated