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Jennifer Lopez And Casper Smart Call It Quits

After nearly three years of dating, J. Lo (44) and Casper Smart (27) have split.

Multiple online reports say the couple has been separated for about 2 months.  "They were hoping to be more low key about things," a source told E! Online. "He was slowly going to move out and that would be it."

Rumors about J. Lo and Smart's relationship being on the rocks started as far back as last October, with reports that the two were constantly bickering.  In recent weeks Smart has been allegedly cheating on J. Lo with transsexual model Sofie Vissa, who recently broke her silence about their encounter.

However, Radar Online confirms that the break-up has nothing to do with Smart's alleged interaction with Vissa or the other transsexual he's been linked to. Sources say the two simply grew apart.

"It wasn't an easy decision, but they decided to stay friends...Their relationship couldn't work with the distance," an insider told US Weekly. "He started trying to establish his own life and career, and she is so focused on hers, and they just couldn't be all about each other anymore."

Now Smart is said to be moving out while J. Lo is on the road promoting her new album, A.K.A.