Thanks for reading and responding. I didn't say all people are happier living apart—only the people who actively choose that are.

For struggling couples who are considering divorce, here's the truth— divorce is expensive and one or both will have to find a new place to live anyway. Why not try to save the marriage by giving it some space by living apart?

You are right—LAT most definitely isn't for everyone— and yes, "people should know more about themselves ...before getting into a relationship with another adult." Still, even those with a healthy dose of self-knowledge can't predict what may/may not happen in a long-term relationship and what a romantic partner may/may not do.

Who could predict that Elizabeth Gilbert would fall in love with her best friend, a woman, and divorce her husband to be with her?

How many married people could have predicted their spouse would come out as gay or transition to being a trans woman or man one day?

Life is unpredictable.