Kim Kardashian 'Is Over' Kanye West's 'Chaos,' Says Source: 'They Are Not on the Same Page'

It's a new year, but Kim Kardashian and Kanye West are still navigating a significant rough patch in their marriage.

Multiple sources confirm that Kardashian, 40, has been struggling in her decision of whether or not to end her nearly seven-year union to West, on the heels of an exceedingly difficult year.

"Kim and Kanye's marriage is beyond repair," a family source tells PEOPLE in this week's issue. "Kim is over Kanye's chaos, and at this point she just wants to focus on the kids and her own life."

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The high-profile couple shares four children: daughters North, 7, and Chicago, who turns 3 on Friday, and sons Saint, 5, and Psalm, who turns 2 in May.

Despite social media posts showing seemingly happy family vacations to Wyoming and Colorado last year, sources say behind the scenes, Kardashian grew increasingly concerned about West's behavior — including his unlikely Presidential run and controversial and public statements about abortion, Kris Jenner and his marriage to Kardashian.

"If I had to say the final straw, I believe it was a combination of the Presidential run and his Twitter rants," says an insider. "It created havoc at home. And though Kim is well aware of his issues [West opened up about his bipolar disorder in 2018], and tried to help him, she realized it was futile."

Ultimately, "they are not on the same page," says the source of Kardashian and West, 43. "Kim knows what she wants to do with her life and Kanye is constantly all over the place."

Continues the source: "She isn't in a rush to file for divorce. But it is on her mind."