FLAGSTAFF, ARIZONA: 'Sister Wives' star Kody Brown opened up about having a good relationship with his only remaining wife, Robyn Brown.

However, the patriarch of the Brown family confessed that his and Robyn's relationship was never given a chance to bloom properly.

In the recently released episode, Kody confessed, "It’s really awkward because the only wife I have a relationship with right now is Robyn."

The US Magazine further reports Kody slamming fellow 'Sister Wives' star as he confessed, "But we’ve (He and Robyn) never been allowed to, essentially, be in love with each other or find solace in each other, and now everybody else is leaving, everybody else is gone."

He added that the messy separation from Christine and his estranged relationship with other wives never gave him a chance to spend quality time with Robyn.

Calling the situation "not a safe place for us," Kody claimed, "We’re having these struggles with everybody else, but we still don’t feel like we can expose our place of solace, our love for each other in any way."

'Sister Wives' Season 18 star Robyn Brown left 'frustrated' amid fall of polygamy

Robyn confessed in the recently released episode of 'Sister Wives' Season 18 that it's been "very frustrating" to watch Kody's relationship go south with fellow sister wives.

The star was left frustrated with her not being able to help Kody and sister wives reconcile their relationship.

She says, "It’s all of them doing it. It’s Kody with Christine and Kody with Janelle, and I have no say and I have no influence whatsoever."

Indeed, she is seen trying to help Meri show that there is hope of reconciling her marriage with Kody.

Not being able to help any of Kody's sister wives from falling off the polygamy, Robyn says, "It’s very frustrating and some days it feels like a dealbreaker."

Robyn believes Christine 'messed up' Kody Brown

Seeing Christine leave behind polygamy, sparking doubts in other sister wives' mind as well, Robyn says, "What Christine has done is messed him (Kody) up and he doesn't want to admit it but it's the truth."

She then explained how Christine has affected Kody. Robyn says, "Christine has just totally destroyed his past, like, what he thought was a functional situation."

Robyn went on to slam Christine for calling Kody "horrible."

Well, it seems Christine has moved on in her life by marrying David Woolley, leaving Kody and fellow sister wives behind.

'Sister Wives' Season 18 releases new episodes every Sunday at 10 pm ET on TLC.