Kim Moldofsky can feel guilt over just about anything — her children, stray cats, her work, her husband. “I am easily guilted,” she told me, laughing.

Meanwhile, her husband, Brad, 41, remains blissfully guilt-free. “He is kind and caring but he can be more detached,” said Moldofsky, a 41-year-old “mom blogger” and social media strategist near Chicago. “Sometimes I want him to get caught up in the emotion.”