WTF! HOW DOES YOUR HUSBAND TELL YOU HE USE TO GET IT IN WITH GUYS? GWEN STEFANI'S HUSBAND GAVIN ROSSDALE SAY'S IT WAS A ONE TIME EXPERIMENT WHILE HIS LOVER SAY'S THEY WERE TOGETHER FOR FIVE YEARS!

Perhaps Gavin Rossdale should have listened to "Don't Speak," his wife Gwen Stefani's 1995 hit with her band, No Doubt, before he spoke to Details magazine.
A source close to the Bush front man tells us he's "seriously regretting" going on the record with the publication about his 1980s affair with gender-bending pop singer Marilyn (nee Peter Robinson) - in part, because he then had to come clean with his wife.

In the article, which posted on Details' website on Monday (and will be available on newsstands Oct. 19), Rossdale admits to the long-rumored affair after writer Jonah Weiner asks him if the relationship, which took place when Rossdale was 17 years old, was a case of "one-time experimentation."

The rocker responded, "Yeah. That was it." But our source tells us (and another confirms) that after the interview, Rossdale approached the publication's editors and "pleaded with them" not to print the admission. Details chose to run with its scoop.

We hear this has left Rossdale with some 'splainin' to do, as far as his superstar wife is concerned.

According to our source, although Stefani has been aware of the rumors, "Gwen didn't know that Gavin and Marilyn were actually involved. Gavin always said before that they were just friends, and that's what she believed, until Gavin had to tell her" because of the interview in Details.

Boy George first wrote about Rossdale and Marilyn in his 1995 book, "Take It Like a Man." At the time, both men denied the relationship, but last year, Marilyn told In Touch magazine that he and Rossdale had been involved for five years.

Marilyn also said that because Rossdale's band, Bush, was "just becoming successful in America" at the time Boy George's allegations were hitting the press. "I agreed to lie against every grain of my being."

Details magazine declined to comment. A spokeswoman for Rossdale didn't get back to us by deadline.