It's clear the sisters still harbor some ill will toward each other following the spat, with Kourtney calling out Khloe for tweeting she "just wanted peace".
As die-hard viewers will know from the explosive trailer, Kourtney Kardahisan, 39, clashed with her sisters Kim, 37, and Khloe, 34, in the fight to end all fights.
That's when Khloe fired back, "Hey @kourtneykardash are you watching the same episode I am???"
Although most of us assumed the sister's had put their differences aside, an enormous Twitter row kicked off by Kourtney last night as the show premiered has shocked many into realising the extent of their differences.
Although the initial fight happened back in October 2017, Kourtney Kardashian has revealed that her conflict with Kim and other members of her family is still "ongoing" as she credits her "personal growth" for her new attitude, where she refuses to allow her famous family to criticize and judge her life choices. "You're an unbelievable mother, I'm not taking that away from you".More news: ‘Facts of Life’ Star Charlotte Rae Dies at 92
After Kourtney storms out, Kim says that she didn't want her at the shoot because she is the "least exciting to look at". "My #1 priority is being a mother as well and I can work too, so can you!"
Speaking on the show, Kourtney insisted she would no longer spend time with people who upset her, including her siblings. "So, I don't think she's big on family 'cause if she was, she would be at my shower".
This, of course, did not go down well and resulted in things being said that were all out nasty, especially when the trio watched the arguments back last night and made a decision to live tweet their thoughts on the matter. Kim saying that I'm the least interesting to look at - who even speaks like that? You guys just have really different values than me.
"I'm not here looking for another job". What's natural to me is being a mother. I would be a full time mom. I've been working out for 11 days now, I feel really good, but exhausted.