Sinead O'Connor Reveals What Killed Her 18-Day Marriage

It looks like Sinead O'Connor is walking away from her 18-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 Dec. 8 drive-through wedding in Las Vegas. Now, O'Connor tells Britain's Sun tabloid, "I don'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 wedd...