Breakups are never easy, but add in a best-selling memoir which airs all your dirty laundry as a couple, and you鈥檝e got yourself a recipe for disaster. That鈥檚 exactly the situation which exes Kris and Caitlyn Jenner, who divorced last year after 23 years together, have found themselves in following the release of Caitlyn鈥檚 book, The Secret of My Life ($17), with things getting messy, and fast.

Kris claims that Caitlyn is lying about their union in the memoir, and her brood is standing behind her, with Kim angrily saying that the Olympian 鈥渟tarted three different families with three different people and f*cked everyone over.鈥

Jenner鈥檚 eldest biological daughter with Kris, Kendall Jenner, is also having her say, and it鈥檚 not looking the best for dear old dad. Despite admitting to Harper鈥檚 Bazaar that she鈥檚 鈥渕ore of a Jenner than a Kardashian鈥 when it comes to tapping into her girly side, the supermodel is totally team 鈥淜鈥 on this one.

In a new clip for Keeping Up With the Kardashians, she says there鈥檚 truth to Kris鈥檚 allegations that Caitlyn鈥檚 memoir isn鈥檛 exactly accurate. 鈥淚 heard about all of the stuff she was saying in it and just how a lot of it is so not true,鈥 she says in a convo with her mom.

While the 21-year-old concedes that she doesn鈥檛 think her dad is 鈥減urposefully lying,鈥 and rather truly believes what she鈥檚 penned, she takes issue with the fact that Caitlyn didn鈥檛 exactly paint her step-children in the best light, either. 鈥淎nd then she goes around dissing the Kardashians, but it鈥檚 like, those are the kids that YOU raised!鈥 Kendall exclaims. 鈥淚f you have a problem with them, you raised them! That makes no sense to me that she would go around bashing, like, us for no reason. It鈥檚 insane, mom. That鈥檚 insane!鈥

Girl鈥檚 got a point 鈥 Jenner has been a father figure to Kourtney, Kim, Khlo茅, and Rob since they were wee little tykes, with Kourtney, the eldest, being just 11 at the time of her and Kris鈥檚 union. Then again, there鈥檚 always two sides to every story鈥

Watch the fireworks go down tomorrow night on E! at 9pm/8c.

What do you think of Kendall鈥檚 take on the KarJenner feud? Tell us over @BritandCo.

(h/t Cosmopolitan; Photos via Jamie McCarthy, Kevork Djansezian, + Pascal le Segretain/Getty)