Hugh Grant's relationship with Jemima Khan is in trouble, the News of the World claims today.

The actor has been accused of alienating Khan due to his reluctance to settle down with her.

A friend told the newspaper, "Jemima's had enough of Hugh not committing. She can only put up with so much. She still loves him but he's just like the ageing bachelor character he played in About A Boy. Her patience is running out. He is mad to treat a stunning, wonderful woman this way.

"He doesn't know how lucky he is. They've been having huge rows and Hugh doesn't have a clue he's pushing her away. This has been a long-running problem. Usually they'll kiss and make up but this time it's different."

The pair started dating shortly after Jemima's divorce from Imran Khan two years ago.