Amy Winehouse's husband slashing his arms in prison

Amy Winehouse's incarcerated husband Blake Fielder has been slashing his arms whilst locked up in London's Pentonville Prison - because he's missing his wife.

Blake - who is currently locked up in the tough North London jail awaiting trial for allegedly assaulting a barman and conspiracy to pervert the course of justice - reportedly received medical treatment after he began self-harming because he is so lonely.

Blake's former cell-mate Bill Gage wrote in his diary: "What Blake wants is not fame or a drug-fueled mess of a life. He wants a happy life with his wife.

"He is missing her like crazy. He breaks down in tears - he is falling apart.

"After spending four days in solitary he went mad and had to be treated to cuts to his arm. He is doing his best to survive without Amy but admits it's the hardest thing he has ever done."

Blake is also alleged to be the target of drug dealers who he allegedly owes money.

Gage wrote on December 14: "There is a quarter of an ounce of heroin for whoever can smash him up. He's been told he will get boiling water all over him unless he sorts it out."

Blake is also said to be furious that the 'Rehab' singer spent part of her holiday in the Caribbean island of Mustique with her ex-boyfriend George Roberts.

A friend of Blake's said: "He is furious she was with George while he was locked up

She has lapped up the sun while he's been on his own feeling miserable. He doesn't like her friendship with George as it is. Being in jail, he feels more and more detached from Amy.

"He wants an explanation. But he's also desperate not to lose her."