Sister Wives season 18's been intense so far, and most of the onscreen battles are the result of Kody Brown favoring Robyn Brown. In a stunning display of cowardice, Kody stays quiet, refusing to admit that his favoritism's led to disaster. He can't find the courage to say that he's emotionally a one-woman man. Did he ever love the other wives at all? Maybe not. If he did, that ardor's long gone. Only Robyn satisfies him, but since he's a difficult man, she's struggling to deal with his "Kody coaster" mood swings, as per the show.

https://screenrant.com/sister-wives-season-18-kody-brown-coward-wont-admit-robyn-true-love/