Britney Spears' relationship with model Isaac Cohen is officially over, OK! Magazine reports on its Web site.
The magazine says that the model broke up with the singer by phone Sunday evening while she was in New York for fashion week and he was in L.A.
'According to a friend of Isaac, 25, he has been "looking to get out of the relationship for a while.
"It was a bit much for him," the friend tells OK! "There was a lot of drama - it was too much of a whirlwind. It wasn't one thing in particular.
"He likes her. They had a good time together. He was doing his best to help her out - but there is only so much one person can do."
What's next for Isaac? "Hanging out with the guys and riding his dirt bike," says the friend.
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