In an exclusive sneak peek at Sunday's season premiere of Sister Wives, Kody confronts his wife Meri about the scandal that rocked their household.
Last year, it came out that Meri had entered into an online relationship with a person she thought was another man – but who actually turned out to be a woman.
Kody, 47, and Meri, 45, entered therapy to deal with the emotional fallout of the web of lies in which she was entangled.
In the clip, Kody tells Meri that, now that he has some perspective on the situation: "You didn't want to be out of the family, you just wanted to be out of your relationship with me."
Meri takes a long pause before confessing, "Kody, this person got so far into my head that I didn't know what end was up sometimes. And I'm still trying to get her out of there."
Kody responds that, during the time Meri entered the affair, "You seemed so angry, I didn't feel like I could get to you. I didn't feel like we could talk."
Meri admits through tears: "There were times I was angry at you, Kody. I'm not going to lie. I was angry at you. Because, if you and I had taken better care of our relationship, then I wouldn't have been in such a vulnerable place and I would have been open to other friendships that wouldn't lead to this kind of deception and evil. So I was angry at you for not being there for me."
She continues, "All the deception, every single bit of it was a lie. And I get angry at myself for getting so upset about it like I cared. I don't care. She messed with the wrong person – and I want to use really bad words – but she messed with the wrong person."
In an interview, Kody is at a loss for words: "It's weird, it's just a tough place to be. I can only imagine how vulnerable, how abused she feels. Who would you ever trust again?"
Sister Wives premieres Sunday at 8 p.m. ET on TLC.