In a preview for an upcoming episode of the E! docuseries, Kris finally confronts her ex face-to-face about their drama following Caitlyn's much-publicized transition.
"You're sensitive and amazing to all these new people in your life, you're just not so sensitive and amazing to the family that you left behind," Kris tells Caitlyn, tearing up. "When you feel like you gave your whole life to somebody and the sum of it all was you were a distraction..."
Only Caitlyn is clearly not having it.
"Don't go there," Caitlyn abruptly says. "This is not the issue. I was defending myself. It was a distraction from the sense of who I was, it doesn't mean I didn't love you or the kids."
Caitlyn has been on the defensive in recent episodes of I Am Cait, with Kim previously calling her comments to Vanity Fair about Kris "unfair." The pair was married for 23 years, before divorcing in December 2014.
" .... Then it said, 'Had Kris been accepting to who I am, we still would be together.' And that's the most unfair thing in the world to say," Kim commented. "You don't look at it that way, but my mom does."
On the other hand, Khloe was much more blunt.
"We want to support you and be there for you," Khloe told Caitlyn. "But, we don't think that that entails you speaking negatively about my mom. In our opinion, you don't even need to mention our mom ... let's not drag my mom through the mud. ... I would think you would come from a place of more compassion, especially when you have two young daughters who are greatly affected by it."
Watch the tense moment below.