Kris Jenner makes Caitlyn Jenner cry after Caitlyn confronts her ex-wife about not being invited to their daughter Kylie's graduation in a new sneak peek for the upcoming episode of E!'s docuseries "I Am Cait," E! News reported.

The exes came face-to-face in an emotional sit down to discuss why Kris didn't invite Caitlyn to Kylie's high school graduation party, a milestone that Caitlyn wanted to be a part of.

"One of the reasons I wanted to talk to you is because I don't want your feelings to be hurt like the other day when I heard that you weren't happy about not being included in Kylie's graduation" Kris says as she plays with a tissue in her hands.

"It wasn't me making that decision, it was you making that decision," Caitlyn responds. "I was so disappointed in everybody. For 15 years of my life, I carpooled kids every day-some days I would spend three or four hours a day in the car. A slap in the face when you don't even get invited to their graduation."

But Kris interrupts her to bring up Caitlyn's now-iconic "Call Me Cait" cover story in Vanity Fair, where Caitlyn allegedly bashed Kris for not accepting her decision to transition. Kris' daughter Khloe Kardashian confronted Caitlyn about the article in a previous episode of the series, as previously reported by HNGN.

"Okay it's not tit for tat," Caitlyn says, waving her hands in the air. "Vanity Fair was months ago, we're talking about just a few days ago."

"Listen, usually people that get a divorce don't do everything together," Kris says as Caitlyn holds back tears. "It wasn't malicious. I didn't intend to hurt anybody's feelings, but my feelings still weren't healed."

Watch their tense exchange below and be sure to catch the new episode of "I Am Cait," airing Sundays at 8/7c on E!