Confessing to The Sun Blake admitted: "I was the one who brought drugs into the relationships."
The 'Back to Black' singer died last year of alcohol poisoning, something that Blake was relieved to hear.
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He told The Sun: "When the toxicology results came back I was relieved there were no drugs in her system."
"I don't know whether it absolves my guilt or responsibility. But it meant that I didn't kill her."
Despite admitting that he was the person who introduced drugs into their relationship, Blake was adamant that he was entirely to blame for her well documented drug addiction.
He explained: "It seems disrespectful to Amy to assume she was so impressionable she would take them without the decision to do so herself.
"She was actually very strong and independent."
When Amy died, Blake was serving a 14 month sentence in jail for burglary and was therefore unable to attend her funeral.
This devastated the ex-addict admitted that when he heard of the singer's passing, his world came crashing down around him.
He said: "I thought my world had ended. We were two peas in a pod."
A new gravestone for Amy Winehouse was unveiled in a North London Cemetery on Friday.