Jonah Hill Splits from Longtime Girlfriend Jordan Klein

 Steve Granitz/

Skinny and single!

Jonah Hill dropped around 40 pounds for his role in the action flick 21 Jump Street, and he also left behind his longtime girlfriend Jordan Klein!

PHOTOS: Will Jonah look even better after his breakup?

The 27-year-old Moneyball star and Klein recently broke up, sources confirm to Us Weekly.

The exes — who first met in high school — were spotted packing on the PDA as recently as July 2011. 

A source told Us "Jordan always seemed really happy and in love. I never heard a single complaint about their relationship." So the reason behind their split? "It was probably traveling. She would always go where he was. Now that she has a stable job, she can't just pick up and leave,” said a source.

Another source saw the Superbad star hanging out with a different girl at an event just a few weeks ago.

While Hill declined to go into detail about his private life, he did open up about his struggle to lose weight. "It's not fun," he told the Los Angeles Times of his get-fit plan. "I wouldn't say it's the most fun endeavor I've ever took on in my life — but it's important. And I'm enjoying it. If I eat something unhealthy now, I kind of feel a little weird and my body hurts."

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