The best thing parents can do for their kids is to love each other. Recently, my wife, Mary, and I were in my doctor’s waiting room, where she found an old copy of Time magazine (May 20, 2019). Leafing through it, she came across an article with a very large headline, “LOVE YOUR SPOUSE MORE.” After reading it, she handed it to me, and said, “Read this. I know you’ll love it.” It began: “Parent’s love for their children can make them do peculiar things. Like staying up until 1 a.m. gluing glitter on a second-grade class project. Or driving 40 miles to deliver a single soccer cleat. Or, perhaps, bribing their teenagers’ way into a fancy college. But one of the weirdest things parents do is love their children more than their partners.” “Yes,” I all but shouted to my wife, sitting next to me. “I finally found something …