The tension betweenKim Kardashian Westand her sisterKourtney KardashianonKeeping Up with the Kardashiansisn’t over yet.
During an appearance on theEllen DeGeneres Showon Tuesday, Kim, 39, opened up about the drama that played out between them on season 17 of the show, revealing that it carries over into the upcoming season 18.
“Kourtney and I, wejust went to Japan together. We’ve really taken the time to hear each other out and listen,” she said. “What sucks is that season 18 will come out soon and it gets worse before it gets better. But her and I have healed and have talked about everything and really come to an understanding.”
Season 17 sawserious tensions arisebetween the Kardashian sisters over Kourtney’s “boundaries” when it comes to the show, with Kim andKhloé Kardashian, 35, complaining about having to “pick up the slack” in moments when Kourtney, 40, refused to film. At one point, Kim even threatened to fire Kourtney, though sources have told PEOPLE that thisisn’t actually possiblesince all three sisters are equal-level executive producers.
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Speaking toEllen DeGeneres, Kim explained that Kourtney “likes [the show], but she only wants to film when she feels like it.”
“If one family member goes on vacation a lot or takes time off a lot, the other family members have to step in and take over those hours,” she said. “So for the past year, Khloé and I have been taking over her hours, working, because we need content to make the show.”
“So Khloé and I have been really frustrated that we’ve been working longer and we have kids and a lot of stuff going on, and it’s been exhausting for us when she hasn’t taken that into consideration without making a decision of what she wants to do,” she continued. “Stay on the show, not, but to be in this limbo and have us do this for so long is frustrating.”
“We’ve come to the conclusion that [Kourtney will] film a little bit,” she added, before clarifying, “I don’t even know if we have a conclusion, actually. It’s always up in the air.”
“But we’re in a good place about respecting each other’s space,” she said. “And if someone doesn’t want to be on the show, we obviously want them to have that mental break and live their life exactly the way that they want.”
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On Sunday’sseason finale, Kourtney grappled with her future on the family’s long-running reality show, confessing she may have reached her limit.
“I have three kids that are my priority more than the show,” she said. “What I’m saying is I’m getting to the point where I’m not happy. Everyone has their breaking point. Life is short. It’s not all about filming this show.”
“It’s not okay that I feel like I’m at my breaking point,” she continued. “I need a break and I don’t want to film anymore.”
RELATED VIDEO:Kim KardashianThreatens to Fire Kourtney fromKUWTKfor Hiding Her ‘Personal Life’ — ‘She’s Out’
During an appearance onEntertainment Tonightlast month, Kourtney revealed that she would betaking a step back from the showto focus on her children with exScott Disick— sonsMason, 10, andReign, 5, and daughterPenelope, 7.
A premiere date for season 18 ofKUWTKhas not yet been announced.Ellenairs weekdays (check local listings).
source: people.com