After getting married in 2010, much to the chagrin of Kody's other wives, immediately became the villain.

Source: https://screenrant.com/robyn-browns-5-worst-sister-wives-moments/

Also, Kody's venting about his issues with two of his sons, and those problems are being exposed onscreen too.

Source: https://screenrant.com/sister-wives-news-roundup-week-oct-9-15/

Due to the seven years that have passed since the emotional infidelity, the reason why Meri’s marriage to Kody ended has been largely attributed to Kody's lack of affection for his first wife.

Source: https://screenrant.com/sister-wives-meri-brown-painted-villain-lately-reasons/

Furthermore, Christine realized that Kody's romantic affection was solely directed towards Robyn.

Source: https://www.inquisitr.com/how-the-dynamics-between-kody-and-robyn-brown-led-to-the-collapse-of-the-brown-family

He's got some of Christine's gusto, but a little of Kody's narcissism.

Source: https://screenrant.com/sister-wives-season-18-ratings-sky-high-show-boring/

Hopefully, Janelle doesn't do that too much, but if there's any truth to what Kody's saying, she might need to take a step back and realistically assess her actions.

Source: https://screenrant.com/sister-wives-signs-janelle-brown-nasty-person/

However, later in May or June, Janelle no longer wanted to be part of the "marriage equation" amongst the four and stopped calling herself "Kody's wife."

Source: https://www.inquisitr.com/sister-wives-star-janelle-brown-stuns-fans-in-makeup-free-post

Robyn, who was the last of Kody's wives to join the family when they were married in 2014, is used to getting what she wants.

Source: https://screenrant.com/sister-wives-season-18-signs-monogamy-robyn-brown-faking-concern-brown-family-dysfunction/

While he's got issues, Kody's not all bad as a parent.

Source: https://screenrant.com/sister-wives-kody-brown-bad-dad-gwendlyn-brown-beatriz-wedding/