Mariah Carey and Nick Cannon are rumored to be heading for a split after six years of marriage.

Mariah Carey, Nick Cannon Splitting?

Carey, 45, and Cannon, 33, have been "living separately" as they get ready to go public with their plans to go their separate ways, reported the New York Post. “He hasn’t been staying at their home,” a source told Page Six. “He’s been living out of hotels. They’re fighting a lot.”

One reason for the fighting is allegedly due to Carey's suspicions that Cannon is cheating on her, or at least that he's putting himself in tempting situations. To lessen her worries, she's hired security guards to keep track of him when he hosts Las Vegas pool parties, according to a source for the Post. "The security guard wasn't there to keep the girls away from him. It was to keep him away from the girls," said the source, who added that Cannon "gets in trouble when he drinks."

Back in July, Carey and Cannon put their $13 million Bel Air mansion on the market. They explained that they were unloading the pricey bit of real estate because they wanted to raise their 4-year-old twins – Moroccan Scott and Monroe – in New York City, where Carey owns a triplex in the Tribeca neighborhood.

Marriage Disappears From Social Media

Cannon's Instagram account is currently inactive and Carey's, which previously featured tons of pictures of her husband, hasn't featured the America's Got Talent host since Father's Day. The pictures filling up her timeline often include their two kids, but Cannon is nowhere in sight.

Cannon addressed rumors back in May after people were wondering if they'd split since they hadn't publicly renewed their vows as they had in years past. “If you paid attention to it, it actually probably would start really affecting you,” he told Parade. “There’s no merit or truth to it. It’s kind of humorous really. It couldn’t be further from the truth, and it really affects credibility of the so-called newspapers.”