Kody Brown‘s love with wife of 15 years Robyn Brown is meant to be multiplied, notdivided.

So, while the Sister Wives patriarch was enduring the metaphorical knives to the kidneys he felt as he was unraveling his marriages from Meri Brown, Janelle Brown and Christine Brown, his sole remaining wife was ready with the salve.

“Robyn and I are fighting for our marriage and our life together,” the father of 18 acknowledged on the long-running TLC series’ Jan. 4 episode, referencing the struggles they have endured as he navigated his three divorces. “We have been going through four years or more of breakup with the family.”

And, admittedly, he hasn’t always been in top-notch husband form as they pivoted from plural marriage to monogamy.

Said Kody, “I guess what I’m saying is Robyn and I have a great relationship when I’m being me, when I’m being brave and kind.”