Robyn Brown and Kody Brown's marriage may have been destiny all along.

The Sister Wives patriarch and his remaining wife revisited their love story on the April 20 episode of the TLC reality show, including a particular label he once made fun of.

"I'm a fool for my woman. I love her," Kody—who is father to 18 kids with Robyn and his three previous polyamorous wives Meri Brown, Janelle Brown and Christine Brown—said during a family meal. "I didn't know that Mom was my soul mate when I married her."