Of course, when you fall out of love, it’s rarely about just one failure or one betrayal, is it? . . . How does it happen? All those things you once loved about each other are replaced by other things that remind you of something you hate until you’re always setting each other off, and what you share is a battleground. In the end, the failure turns out to be less about sex—which surprises most men—and more about loss of respect. One morning your partner looks at you across the bed and wonders at the waywardness of her own heart—how, she asks herself, can she feel such disdain for someone she once felt such love?