( PEOPLE.com ) -- It looks like Sinead O'Connor is walking away from her 16-day marriage bolder but wiser . The `` Nothing Compares 2 U '' singer , 45 , announced her split from fourth husband , Barry Herridge , on Monday , 18 days after the two tied the knot in a well-planned December 8 drive-through wedding in Las Vegas . Now , O'Connor tells Britain 's Sun tabloid , `` I do n't think I will even date anyone . '' What sabotaged the union ? `` It felt like I was living in a coffin . It was going to be a coffin for both of us , and I saw him crushed , '' she says of Herridge , 38 . `` The whole reason I ended it was out of respect and love for the man . '' In addition , O'Connor owns up in the interview that she went on a frantic hunt for cannabis on their wedding night . `` We ended up in a cab in some place that was quite dangerous , '' O'Connor is quoted as telling the Sun . `` I was n't scared -- but he 's a drugs counselor . What was I thinking ? '' She adds : `` Then I was handed a load of crack . Barry was very frightened -- that kind of messed everything up a bit , really . '' See full article at PEOPLE.com . © 2011 People and Time Inc. All rights reserved .
She announced her split from fourth husband , John Herridge , on Twitter . The two tied the knot in a well - attended December 8 drive - through ceremony in Las Vegas . O'Connor says she went on a frantic hunt for cannabis on their wedding day .