But just 24 hours later, Winehouse was seen out and about, and claimed that the man she'd just "lost it" on had actually saved her life.
Here's how it went down, according to the UK's Daily Mail: the songstress, who had left rehab - again - after just a few days and was holed up in the Sanderson Hotel in London, was spotted by photographers walking around London early Thursday with cuts and blood on her face.
Her legs and feet were also bloodied, and her husband, Blake Fielder-Civil, had cuts all over himself as well.
In a series of text messages posted on Perez Hilton, however, Amy explained she was "cutting herself" in her hotel and "after he found me ... rightly said I wasn't good enough for him. I lost it and he saved my life."
Early this morning, at 4:00 a.m. London time, the couple was seen cleaned up and strolling arm-in-arm down the street.
TMZ, meanwhile, directly contacted Scotland Yard, who reports that no charges will be filed in connection with the incident. Winehouse has made no secret of her history of self-mutilation, but this is one of her more disturbing episodes yet.
We love Amy's tunes, but what a mess! She's like a British, more talented version of Britney Spears ... with a penchant for violence!