I swear my "write about marriage and risk losing yours" proposition is real. Here's another one! From wikipedia (okay, not a reliable source but so? Pay me to do real research. In the meantime, here's anecdotal evidence and wikipedia for you -- and you'll like it.):
In 2001 the followup book The Rules for Marriage: Time-Tested Secrets for Making Your Marriage Work was released in the midst of Fein's legal separation from her husband.. She subsequently divorced. .