One of the questions I am often asked when I talk about my book, Single at Heart: The Power, Freedom, and Heart-Filling Joy of Single Life, with people who have not yet read it, is: Can you be single at heart (meaning that single life is your best life) and married or in a committed coupled relationship?

I thought I knew the answer before many people shared their life stories with me and tens of thousands answered a survey, but I was only half right. I expected to find married people who got married because it was what they thought they should do, and then discovered that, no matter how much they loved their spouse, they yearned to be single again. They stay married to honor their commitment to their partner.

This really does happen. Early on, when I first started writing this “Living Single” blog, a married reader got in touch regularly to tell........

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