Friends say that Amy Winehouse is “living as a single woman” after she snubbed her jailed hubby’s 26th birthday.

The scabby singer failed to visit Blake Incarcerated at Pentonville Prison, North London, yesterday, or even acknowledge the occasion with a card, it’s claimed.

Now Amy’s pals have revealed that their marriage is all but over but she will not dump Blake while he is behind bars.

One tells The Sun: “Amy does everything she can not to visit. She forgets she is married half the time. There are a few men she is close to and Blake can’t stand it.”

Amy's dad, Mitch, is also not optimistic about their future, commenting last night: “It wouldn’t surprise me if Amy and Blake had broken up.”