Washington, June 10 : Leonardo DiCaprio and Bar Refaeli have ended their on-and-off relationship once again.

Sources have revealed that the couple have taken a break from each other because the Sports Illustrated swimsuit model wanted to move in together, while the `Titanic' star wasn't ready to get serious.

"They''re taking time off for the time being, they''ve split. It could just end up as a break but for now they''re doing their own thing," People magazine quoted a source as saying.

And the split became apparent when the Israeli model walked the red carpet at Hollywood Life''s 11th Annual Young Hollywood Awards all alone, refusing to speak about DiCaprio.

Just a week before that, DiCaprio, 34, was spotted at the hotspot Avenue in New York City, where he was seen chatting with another woman.

"He was standing at the bar in front of everyone talking to a girl the entire night - and it wasn''t Bar. It was in no way behaviour for a guy who has a serious girlfriend," said an onlooker of the May 30 encounter.

But, on June 8, the couple were reportedly photographed together in Los Angeles.

A source close to Refaeli said that the model''s desire to get serious might have caused the actor to have doubts about their relationship.

"She wanted to move faster than he did, she wanted to move in together, so he broke it off," said the source. (ANI)