Singer Sinead O'Connor. (Eduardo Munoz/Reuters)

Sinead O’Connor has ended her marriage to Barry Herridge after 16 days, the singer announced on her Web site Monday in a lengthy blog post. While O’Connor said the split is amicable, she also blamed people in her husband’s life — and one of her own habits — for the demise of their relationship.

“Within 3 hours of the ceremony being over the marriage was kyboshed by the behaviour of certain people in my husband’s life. And also by a bit of a wild ride i took us on looking for a bit of a smoke of weed for me wedding night as I don’t drink,” O’Connor writes on her blog. “My husband was enormously wounded and very badly effected by that experience and also by the attitude of those close to him toward our marriage. It became apparent to me that if he were to stay with me he would be losing too much to bear.”

The singer announced her engagement on Dec. 7. The couple wed in the back of a pink Cadillac in Las Vegas the next day, O’Connor’s 45th birthday.

O’Connor, who has been married three times previously, asks in her blog post that the media leave Herridge and his family alone. She said the marriage lasted 16 days, just seven of those spent under the same roof.

“I am in a good place in life. And happy. I believe in and am committed wholeheartedly to happiness. Nothing knocks that. My only concern is that my husband be happy,” she writes. “As my good friend said ‘well, at least you got married in Vegas in a pink Cadillac! Can’t get more Rock n Roll than that.’”