When Karen McNenny was facing divorce about 15 years ago, she was afraid of what it would mean for her future: despair, debt and a lifetime of resentment, she says.

At the same time, she was thinking of her two children, she says. She didn’t want their father to become her enemy.

So she and her former husband chose to approach divorce differently as a couple. “We’re going to renovate and transform this family. We’re not going to destroy it,” she says. “The marriage is ending, not your relationship.”

For McNenny, a mediator, certified divorce coach and certified co-parenting specialist, divorce is a tool, not a weapon. She expands on this concept in The Good Divorce: How to End Your Marriage Without Ending Your Family, which came out this spring. The book offers guidance on how to maintain compassionate and respectful ties with a former spouse while also healing and moving forward.

According to Pew Research Center, a third of Americans who have ever been married had a first marriage that ended in divorce. For that reason, McNenny hopes her book becomes a must-read for couples before they get married. “The best time to talk about divorce is before you need to talk about it,” she says.

She shared insights from her book in a conversation with Life Kit. This interview has been edited for length and clarity.

The book is called The Good Divorce. What does that mean?

[For those with kids,] the good divorce is about protecting the future of the family while we dissolve the marriage.

After the paperwork is done and the assets have been divided, can you and your co-parent sit on the same side of the bleachers during the basketball game? Can you still see yourselves as a partnership, with the ability to have thoughtful conversations about your kids?

For those who don’t have kids, [the good divorce is] about protecting your health — your mental health and your physical health. If we are doubling down with resentment and bitterness, all of that gets stored in the body and shows up in different ways. You deserve a pathway that’s less destructive.

I grew up watching episodic shows on network TV, nearly all of them formulaic but some indelibly great. Then, like everyone else, I moved into the days of what my colleague David Bianculli dubbed Platinum TV, where series like The Sopranos and The Wire and Fleabag aspired to something higher. What both these eras had in common was that their shows were carefully crafted — they had an internal logic, and a tone, that held them together.

In recent years, though, there’s been a proliferation of shows that, possibly obeying some algorithm, care less for coherence than sensation. They lurch among tones, from cuteness to sentimentality to meanness, stirring in random plot twists along the way. Bouncing all over the emotional map, these shows depend on compelling actors and a few memorable scenes to make us overlook their loose construction.

A great example is Alice and Steve, an entertaining but sometimes exasperating six-part British comedy on Hulu about two 50-something best friends who turn on each other after he gets involved with her 26-year-old daughter.

While the premise is juicy, it’s also a tad yucky, and I mainly tuned in because its title characters are played by performers Jemaine Clement from Flight of the Conchords and Nicola Walker, whom I’ve raved up on this show more than once.

The series starts poorly with Steve and Alice going on a cutesy bender after a friend’s funeral. Now, I always hate drunk scenes, which are an invitation to overact. As Clement and Walker bray their lines, we learn that Steve’s a divorced celebrity hair stylist who can’t find a girlfriend while Alice is a clothes designer with a doting younger husband, nicely played by Joel Fry, a sweetie-pie of a teenage son — that’s Tyrese Eaton-Dyce — and, of course, that 26-year-old daughter, Izzy, who has inherited her mother’s willfulness. Played by Yali Topol Margalith, Izzy kickstarts the plot by flirting with Steve. Predictably, he succumbs.

Almost immediately, they think they’re in love. While the weak-willed Steve wants to hide their romance — he knows it’s inappropriate — Izzy just blurts out the facts to her mom. Alice flips. And from hereon out in this series where the women are as alpha as the men are hangdog, Alice drives the action. Betrayed and violently angry, she’ll do whatever it takes to break them up — no matter who gets hurt. Her antics unleash Steve’s own malice. We’re in Beef territory.