What is that?
For you though, I'll spell it out: "sleeps-around"
What is that?
A prerequisite for living a never-divorced lifestyle if you are very busy in a profession in which being successful likely means your spouse will have trouble adjusting (feels threatened, neglected, upstaged, whatever).
Face it, just from her public persona, from the demands of writing and public appearances, time away from home, etc., it would take a very special guy for her to be able to respect him and for the relationship to be stable. If she has not found that with someone, why marry?