It appears that Keith Urban and Nicole Kidman could really see their 10-year marriage come to a shocking end soon.

According to a new report in OK! Magazine, the pair have hit a big slump recently, and this time, they may not be able to overcome it because Urban allegedly wants out now that all they do is fight, and Kidman reportedly doesn't trust him no matter how much he proves he isn't the same guy he was when they first got together.

"Keith is sick and tired of Nicole constantly treating him like he's done something wrong," a source said. "Keith isn't sure how their marriage can survive if she can't trust him."

According to the source, Kidman continues to doubt him and has suggested couple's therapy, but he's fed up because he has made multiple efforts to prove the days of alleged cheating a needing to go to rehab are long behind him. And because he's so sick of being watched closely, the pair is only spending their time together fighting.

"Things have escalated to the point that they're no longer able to even have a conversation without fighting," the source said. "They're both miserable and Keith isn't sure he can go on much longer."

In addition, what makes the constant fighting worse, is that the two have hardly seen one another all year, and that adds to the issue.

This isn't the first time Kidman and Nicole have been plagued by rumors that their marriage was in trouble, as they have often been the subject of tabloid rumors which claimed they were on the rocks because of a wide variety of issues, all of which have previously been proven untrue.

The pair celebrated their 10th wedding anniversary this past June. They are also the parents to two daughters, Sunday Rose and Faith Margaret.