Welcome To Plathville season 5 saw the end of Olivia Plath's marriage to Ethan Plath, leaving many wondering if Olivia will be coming back for another season on Welcome To Plathville season 6. Ethan and Olivia's marriage is irreparably damaged, so the pair have decided to end their relationship and pursue a divorce. Throughout Welcome To Plathville, the couple has struggled as they've changed and grown as people outside their families of origin. With things changing more for Olivia surrounding her beliefs and values, Ethan was no longer a partner that she could count on in their marriage. The divorce may not be amicable, but it was a mutual choice.
https://screenrant.com/welcome-to-plathville-season-6-olivia-plath-returning/