Mariah Carey is reportedly ready to end her marriage with Nick Cannon.

According to OK! magazine, the couple who have been married from six years have come to a roadblock in their relationship and the singer is seriously considering the 33-year-old America's Got Talent host.

"Mariah'd cut him loose right now. But she's worried about him making a grab for a huge chunk of her $515 million fortune," a source OK! magazine, with another insider source saying that Cannon is soaking up in misery.

"Nick feels burned that Mariah is ready to pull the plug. They have a pre-nup, but after Nick tells his side of the story Mariah will most likely settle with him financially and realize her once beautiful marriage has evaporated."

It was also reported that the parents to three-year-old fraternal twins Moroccan and Monroe, are so frustrated with each other that they didn't even celebrate their sixth wedding anniversary back in April. 

"Mariah threw a diva fit and started browbeating Nick about being an absentee, no-good husband. She gave him hell for being immature and accused him of fooling around with other chicks," an insider said. "She told him to cancel whatever anniversary plans he'd made."

Enstars reported earlier that the couple have been dealing with more marital issues since Cannon opened up about his past sexual encounter with Kim Kardashian during a radio interview.

"Mariah hates Kim with a passion...It makes her blood boil that Nick slept with her, and he keeps driving the knife in deeper by talking about it!" the source said. "Mariah got in Nick's face and demanded to know if he's been in contact with Kim."

Cannon has also been rumored to be cheating on Carey.

Tags: Mariah Carey Nick Cannon