Ray Cosbert is said to be at his wits end after the troubled star allegedly sneaked alcohol backstage at a concert in Serbia where she was later booed off the stage for acting strangely.
A source told The Sun, 'It has been hard for Ray to watch her get into trouble over the years.
'There's only so much he can do - but enough is enough. She's going away and this time it could be for years.'
The remainder of her European tour has now been cancelled and it is believed that the Back To Black star may head back to rehab.