On the latest episode of Hulu’s The Kardashians, Khloé Kardashian admitted that she turned down a marriage proposal from her ex-boyfriend Tristan Thompson.

As reported by People, the episode features Kim bringing up Tristan and mentioned that she never disclosed he proposed until later down the line.

“The fact that he proposed and you never told us,” she says. “And I asked him months later… the night  fter I thought it happened and he’s like, ‘Oh I did it months ago, she didn’t tell you guys?”

In a talking head interview, Kim confesses that she’s worried about Khloé because she “holds so much in.”

“I'll never forget Tristan calling me and he was gonna propose to her on Valentine's Day, which was a year since they had drama so this was last Valentine's Day,” she explains. “And then I called him the day after and I was like, 'Hey, I never heard anything from Khloé. Oh my god, did you propose?' and he was like, 'Oh yeah, I did in December.' Oh my God, she didn't tell us!"

Prior to his proposal, Tristan and Khloé were the subject of a very public cheating scandal. The NBA star was allegedly unfaithful during their relationship, and after they split he apologized to her and admitted he was the father of another woman’s child. 

"I said, 'I need to make sure this is a totally different relationship because I wanna be proud to say I'm engaged to anyone,'" said Khloé. "And that's why I said, 'I'm not comfortable accepting this right now because I'm not excited to tell my family,' and as hurtful as that probably was for him to hear, it was the truth. I'm not ever gonna accept something or give someone false hope, and I said that to him."

Earlier in the episode, Khloé describes the cheating scandal as an “incredibly hard” time in her life.

"The hardest part about it all is training yourself to un-love someone. This was my life for six years. And we weren't just a couple, we genuinely were best friends,” she said. “He was my workout buddy, we did all these things together. And so learning how to undo all those things, that takes time. Just because someone does you dirty doesn't mean you fall out of love with them instantly."

As TMZ reported, Khloé was so upset about the whole situation that she experienced brain trauma, according to an MRI scan. “My last ex-boyfriend, there was a lot of cheating while I was pregnant," she told the doctor. "All these things I found out about from social media, so it's pretty traumatic."

Kim also admitted that she and her sisters expressed concern for Khloé amid the drama, because they believed she was looking “too skinny.” 

Asked how she was feeling, Khloé said that she felt the need to “isolate” and deal with things on her own terms following her split from Tristan. “We were in the best place that we were, so when we're in the peak of our relationship, you go ahead and cheat on me?” she said. “I don't even wanna know what you do in the worst of our relationship! I'm just like, shame on me almost. I know better and I didn't do better because I had so much hope and faith."