(Dec. 1) - In a revealing interview with News of the World, Blake Fielder-Civil reveals he feels responsible for the downfall of his wife, Amy Winehouse and is filing for divorce to save her life.

Fielder-Civil, who is currently in rehab and was in prison for tampering with a witness in a case against him, says that he was the one who introduced the ‘Back to Black’ singer to drugs.

Amy Winehouse Rewind

Flip through photos of Amy Winehouse's ups and downs through the years.

Dave Hogan, Getty Images | Will Alexander, WENN

Amy Winehouse attends End of Summer Ball at Berkeley Square on September 25, 2008 in London, England.

Jon Furniss, WireImage

Amy Winehouse attends End of Summer Ball at Berkeley Square on September 25, 2008 in London, England.

Jon Furniss, WireImage

Amy Winehouse leaving the Prince's Trust End of Summer Ball, held at Berkeley Square in London. September 25, 2008

Goff, INFphoto.com

Amy Winehouse performs live on the V stage during Day Two of V Festival 2008 at Hylands Park on August 17, 2008 in Chelmsford, England.

Simone Joyner, Getty Images

Amy Winehouse V Festival Day Stafford, England.

Nick Pickles, WENN

Amy Winehouse performs onstage during Day Three of the T In The Park music festival on July 13, 2008 in Kinross, Scotland.

Tom Curtis, WireImage

Amy Winehouse spits her chewing gum into the crowd during her performance at Glastonbury Festival 2008. England 28.06.08

WENN

Amy Winehouse performs at the Glastonbury festival 2008 on June 28, 2008 in Glastonbury, England.

Danny Martindale, WireImage

Accompanied by security, carrying an overnight bag, singer Amy Winehouse is pictured leaving her north London home. 06/2008

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“I dragged Amy into it and without me there is no doubt that she would never have gone down that road. I ruined something beautiful,” he claims.

He believes leaving her is the right thing to do. “Now I have to let her go to save her life. I am not abandoning her. I am doing this out of love.”

“I have had to live with that for the past year that I have been in prison and I have got so much remorse,” he adds.

Winehouse’s struggles have been well documented in the media, including a stint in rehab, several trips to the hospital and strangely erratic behavior.

Blake describes how his wife got hooked on drugs and self-mutilation.

“I made the biggest mistake of my life by taking heroin in front of her. I introduced her to heroin, crack cocaine and self-harming. I feel more than guilty.”

“The first time Amy took crack she asked me, ‘Can I try a bit of that,’” he explains.

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“Crack is the nastiest drug. It makes you paranoid, unreasonable, edgy and totally suspicious of everyone. And you can get hooked on it straight away. But I was weak and an addict and I let Amy take some.”

But Fielder-Civil wants everyone to know what a great wife Amy was.

“What people don’t realize is that Amy is an amazing wife, an amazing home-maker and a beautiful figure in the home. You would be surprised the domestic bliss you can have with Amy just doing the cooking and caring for you. But because of drugs we can’t have a normal life together. That’s why I have to let her go.”