The sources adds that the pair recently got into a 'huge fight' over 'his jealousy'.
"He accused her of not giving him enough attention. It got out of control. Kim needs her freedom - she went out and got the kids and stormed out, slamming the door!"
"After years of being a supportive wife, there's only so much she can take. There's no reason for her to stay in a bad marriage. This isn't a rocky patch they're going through, they've been unhappy for years," the source spills.
The publication alleges that despite the thought of being alone scares Kim, she's 'ready to be independent again' and is 'strong enough to deal with whatever the consequences may be of leaving Kanye.'