Kody Brownis revealing the terms and conditions he gave his wives before they joined his family.

In PEOPLE’s exclusive sneak peek of Sunday’s episode ofSister Wives, Kody opens up about some of the “special requirements” he expected of his ex-wivesJanelleandChristine Brownand acknowledges how he was spread too thinamongst his four wives.

While speaking to cameras, Kody introduces a term called “sacred loneliness,” which is used to describe women in plural marriages because “their husband’s not around as much.”

“Sacred loneliness? Like you’re supposed to honor the fact that you’re lonely?” Christine laughs while reacting to Kody’s statement.

‘Sister Wives’ Cast.Bryant Livingston/TLC/Everett

SISTER WIVES, Kody Brown (center), surrounded by wives Meri, Janelle, Christine, and wife-to-be Robyn Sullivan, (Season 1), 2010-. photo: Bryant Livingston / © TLC / Courtesy: Everett Collection

Janelle says of the phrase, “The idea is that you sacrifice some of your emotional needs because you want to live in a plural marriage… I’ve always thought it was so dumb. Sorry."

Meri then weighs in on the matter, noting that she often hears Kody talk about the difficulties women face in a plural marriage and adds, “It’s like, really, now you figured that out?”

In another scene, while speaking to David Mitchell “Mitch” Thompson, Kody notes theemotional difficultieswomen can face in plural marriages, but admits he was “tired of hearing about the struggle” and remarks how “they all agreed that they were going to do this.”

Love PEOPLE and big savings?Subscribe to the magazine for 75% offand stay up to date on the latest juicy celebrity news and compelling human interest stories.

Mitch notes in a confessional that until “you’ve sat in the seat and been a guy that’s had four wives and tried to meet the emotional, spiritual, physical, mental needs of four women,” it’s hard to speak confidently on the matter. “There’s a hubris that comes with judgement,” he points out.

Christine Brown and Janelle Brown.Christine Brown/Instagram

Sister Wives' Christine Brown and Janelle Brown at Logan Brown’s Wedding

Christine Brown/Instagram

But in his own confessional, Kody attempts to defend himself.

She adds, “Somehow because Christine and I asked, we deserve less [and] we should be happy with what we got? It wasn’t like we were begging to be in the family. We simply asked, there was a courtship and then we all got married.”

Never miss a story — sign up forPEOPLE’s free weekly newsletterto get the biggest news of the week delivered to your inbox every Friday.

Sister Wivesairs Sundays at 10 p.m. ET on TLC.

source: people.com