I welcome the tone of your introduction where, without any excuse, you state that a monogamous relationship seems to be borne out as the healthiest. It often seems as if this point of view has become old fashioned, rather unpopular and even prudish. I would be interested to hear the evidence for your statement. Though I never see it my job to preach/lecture my patients on this, it might be only fair to give them the known facts on this issue.