In Thursday's "Keeping Up," which follows the family on a trip to Lake Tahoe, footage shows Kardashian West breaking down into tears in a rare emotional moment about the unraveling of her marriage.
The reality star and entrepreneur filed for divorce from the rapping fashion designer in February after almost seven years of marriage. They are parents to daughters North, 7, and Chicago, 3, as well as sons Saint, 5, and Psalm, 2.
During the episode, Kardashian West expresses outrage at the presence of cookies in the clan's vacation home.
"Did I not say no to these cookies?" she asks her sister, Khloé Kardashian. "They have to be taken away. I gained 15 pounds."
"I'm going to throw them in the toilet," she says picking up the dessert stand. "I cannot eat them, and I'm not joking."
When her younger sister tries to lighten the mood, Kardashian West interrupts her: "Where’s my room? I just want to go to my room and never come out."
In an interview with producers, Kardashian lets viewers in on her big sister's relationship struggles.
"Kim has been struggling privately behind camera about her relationship, and it's tough because Kim is clearly redirecting so much of her frustration, and sadness, and anger," shares the Good American co-founder. "Sometimes you just take things out on something that has nothing to do with what you're going through.
"It’s not the cookie’s fault," Kardashian adds with a small smile.
When asked by Kardashian about the how her marriage is doing, Kardashian West responds: "There’s no fighting. Now it’s all calm, so I just roll with it."
Kardashian says before the family left for their trip, the couple had a "big fight."
"I just honestly can’t do this anymore," the KKW Beauty founder says through tears, venting to sisters Kylie and Kendall Jenner, and Kourtney Kardashian. "Why am I still in this place where I'm stuck for years? He goes and moves to a different state every year. I have to be, like, together so I can raise the kids."
Kardashian West praises her now-estranged husband as "an amazing dad" and hopes he finds a partner who could more easily cater to his desires.
"I think he deserves someone that can go support his every move and go follow him all over the place and move to Wyoming," she says to her siblings. "I can’t do that. He should have a wife that supports his every move and travels with him and does everything, and I can't."
Kardashian West also expresses shame over a third divorce. She was previously married to music producer Damon Thomas and (2000–2004) and former NBA player Kris Humphries (2011–2013), from whom she filed for divorce after just 72 days of marriage.
"I feel like a (expletive) failure, that it's a third (expletive) marriage," Kardashian West says. "Yeah, I feel like a (expletive) loser, but I can’t even think about that. I want to be happy."
Next week, "Keeping Up" wraps after 20 seasons (E!, 8 p.m. EDT/PDT), though fans still have a reunion for the reality series to look forward to. A date for the special, which will be hosted by Andy Cohen, has not yet been announced.