In a preview clip released by E! for Keeping Up with the Kardashians' upcoming April 9 broadcast, Khloe visits with Caitlyn, and the pair become very vulnerable for a conversation that was a long time coming.
Caitlyn admits in the promo that she's felt neglected every since her transgender transition nearly two years ago, when Bruce Jenner introduced himself as Caitlyn Jenner to the world by gracing the cover of June 2015's issue of Vanity Fair.
"Before Caitlyn, there was Bruce, and Bruce was in my life for like 24 years," Khloe tells the cameras, revealing she has many "opinions and feelings" about Caitlyn.
"We haven't talked in a while," Caitlyn notes before exchanging pleasantries with Khloe, who prepares for their talk with a glass of red wine.
"I just feel like over the last year-and-a-half, we certainly have grown apart. Day after day, after month after month, nobody calls. Nobody checks in, just, 'Hey how are you doing?' You can't help but sit there and think, 'Okay, is it because I transitioned? They don't like me anymore?' I want to know what I did wrong, what I didn't do wrong, what I did right, and move forward."
"I don't necessarily want to say you did anything wrong," Khloe replies.
At the time of Caitlyn's transition, Khloe and her sisters took to social media to express their extreme pride and support in the reality TV star's decision to live her life the way she wants.
"I don't know if just because you didn't do something maybe the way I would have preferred, that makes it wrong," Khloe continues. "In this family, we deal with things very quickly. We don't have time to really process a lot of things because we're always on to the next. And for me, at the time, I just wasn't at a place in my life where I really could invest in new relationships."
Khloe was likely referring to her tumultuous relationship with her now ex-husband Lamar Odom, who nearly died in October 2015 from a drug overdose.
"It was very hard for me to experience a lot of new things so quickly. I feel like I had to protect my mom with certain things that were happening that I felt like might not have been the most positive," Khloe says of Kris Jenner, whom Caitlyn alleged treated her poorly during their marriage in the Vanity Fair article among other unflattering accusations.
"But then I was also like, 'This isn't even my fight to fight anymore. I have my own sh-t to deal with, so why don't you guys figure that stuff out.' But I don't think Caitlyn is a bad person at all."
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Caitlyn then says in the preview clip, "I understand you've been through a lot, but I spent 23 years of my life being invested in the family and in you -- being there when you had good days and bad days and all the things you go through when you're growing up, like sneaking out of the house when I find you and stuff like that."
"For me, you're all I remember. Bruce was. So not having you in my life, it's a huge blow," Khloe confesses. "Because I'm like 'Ok, my second dad, this guy who I've grown up with that raised me, was taken away from me. But no one really let me have that."