Ther are lots of ways to look at this issue. It has cultural connotations and people all bring their own preconceptions and emotional baggage to it.
Consider the fabulous new film, "La Vie en Rose" (The Edith Piaf story). Her view of unconditional love and what behavior she justified in her life could be compared to the behavior of former French president Mitterand. Yet, their individual, romantic life choices and their views of acceptable love affairs would not necessarily be other people's choices. Some people ignore the strings attached. Other people would be offended at the mere thought.