Less than a year after marrying a man she had met at the beginning of the Covid-19 pandemic, Kat felt tension mounting between them. It was the second marriage for both after marriages of 15-plus years and having kids, and they had pledged to go into it “completely level-headedly,” Kat says, connecting on the need for “facts and rationality” in their domestic balance. But by 2022, her husband “was using AI to compose texts to me and analyze our relationship,” the 41-year-old mom and education no...