My mother toyed with divorce in the mid-1980s, moving out for a few months. Eventually my parents decided to stay together, likely because my father really needed somebody to cook (badly) and my mother needed a (pathologically cheap) husband to provide an income & health insurance. I can't imagine that anybody else would have tolerated either one of them, so not like they could have gotten another partner. They were married for 54 years and there is an unconfirmed rumor that the first year may possibly have been happy.
I've never had to worry about divorce since I send women fleeing very early on. In 2017 a woman -- who I thought I was in love with -- moved 900 miles to take take up residence in my home. That lasted less than 2 weeks. This woman was disabled by social anxiety & depression (just like me!), having no ability to work, having no car, having no home, and having no money at all (she was $10,000 in debt). I offered her a relationship, understanding, a home, a car, a secure financial future and still she decided that I was so terrible that she walked out before I awoke leaving me to wonder what happened. She left with some of her clothes, laptop, phone and nothing else. I'm so horrible that fleeing quickly is necessary. Out of that I got a broken heart, a set of dishes, and assorted junk that still clutters my house.
If she had stayed, there still never could have been a future divorce since we could never have married. She had to remain destitute to qualify for SSI, thus needing to remain unmarried or marry a guy who's broke. Our plan had been to live like a married couple, just without the marriage certificate. And now that I'm closing in on death, her decision to leave is looking really stupid, as she could have won the jackpot as my beneficiary.