I agree there is true love in for those who are truly loving themselves but only for a limited time. We all love our parents, friends and family. We cannot live without them . The person who leaves them will definitely feel a sense of loneliness in his heart. Because God created us together and wants us together. Coming to the point where you said hitting a wife in the 40s and 50s was a normal thing. It is still a normal thing lol. But what makes awkward is people hitting someone elses sister, daughter ( someone who is not this wife). All problems start from here. All monotheistic religions state the same thing. The reason why people are in chaos today in terms of relationship today is because of the same thing... True love is with your spouse not only bodily attachment but with emotional well being as well. I am not yet married yet but I think this is what life ethics are :)