TRAVIS BARKER and SHANNA MOAKLER

The couple announced they were separating earlier this month (08AUG06), amid rumours the former MISS USA was unfaithful during their marriage.

However, a source close to Moakler tells American publication Us Weekly her participation in the show was the real reason behind the split, saying, "When he found out, he flipped and told her he wanted a wife, not a Hollywood socialite."

Barker posted a rant on his MySpace Web page on 14 August (06), claiming he first heard about his wife's new gig from his real estate agent.

The couple starred in the MTV reality show MEET THE BARKERS and have three children together, ATIANA, 7, LANDON, 2 and ALABAMA, eight months.

Moakler has slammed reports she was unfaithful during their marriage and tells the magazine, "I'm seriously concerned for his mental well-being.

"Perhaps the lifestyle that he leads is taking its toll. For the sake of our children I hope he seeks help."