Justin Bieber & Selena Gomez Reunite For Disastrous Dinner Date

Access Hollywood
Justin Bieber and Selena Gomez pose during the 2011 Billboard Music Awards at the MGM Grand Garden Arena in Las Vegas May 22, 2011 -- Getty Premium

Justin Bieber and Selena Gomez, who reportedly broke up two weeks ago after nearly two years of dating, reunited for a casual dinner date in Los Angeles on Friday - but it didn't end well.

The apparently off-again couple met up at Yamato (a Japanese restaurant in the San Fernando Valley north of Los Angeles), but got into an argument almost immediately, an observer told People.

PLAY IT NOW: Justin Bieber & Selena Gomez Reunited?

Selena, 20, and Justin, 18, left the restaurant within minutes of arriving, with Selena looking "visibly mad," according to the mag.

The duo headed out in separate cars, and the "As Long As You Love Me" singer followed Selena back to her house, where, according to TMZ, she refused to grant entrance to her former boyfriend, forcing him to leave.

VIEW THE PHOTOS: The Way They Were: Justin Bieber & Selena Gomez

Justin took to Twitter later that night with a mysterious message to his fans.

"Things aren't always easy," he Tweeted. "There is a lot of pressure. I'm figuring it all out. I'm trying. But I care, I notice, I still hear u. #Beliebers"

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