Leonardo DiCaprio, Bar Refaeli split

They're off-again.

Leonardo Di Caprio and his supermodel girlfriend Bar Refaeli have ended their five year relationship, The New York Post reports. This isn't the first time the couple has separated (they broke up for six months in 2009), as one source says, "they do this every two years."

An insider close to the couple says there's a strong possibility DiCaprio, 36, and Refaeli, 25, will reconcile. "They could be back together next week."

The reason for the split? "It was amicable, they're still friends and they are still talking," a source squeals. "They just grew apart and went their separate ways."

The couple started dating in 2006 and took a six-month break in 2009 before resuming their romance in 2010.