How Not to Tank Your Relationship in Quarantine

Humans have evolved with a drive to share life with a partner—just not all day long. Our hunter-gatherer ancestors on the savanna formed pair-bonds, but they parted in the morning to go about their separate tasks. So did our ancestors on the farm. For hundreds of thousands of years, even the most devoted couples have been uttering some version of that basic romantic principle: “I married you for better or for worse, but not for lunch.”

So what happens now that spouses are staying home all day, and many unmarried couples suddenly find themselves quarantined together? The peril facing relationships quickly became obvious to the pioneers of this new intimacy on the Diamond Princess cruise ship, where couples were cooped up for two weeks in their cabin during the ship’s quarantine. Ellis Vincent, a retired airline executive from Australia, that he and