That is an answer. The love for your wife is mediated by gonadal hormones under the influence of neural axonal synaptic discharges. That is it? It seems you side with the position that love (you refer to the sex act as love) is without reason, but the playing out of a physical act as the result of abberrant genetic selection and is therefore meaningless. For you to say I love you,my wife, holds no more meaning than for you to say "I have a gastrintestinal pain, or an itch, and is there fore meaningless." The institution of marriage is only utilitarian under this application. Would you take a bullet for your wife, and why or why not? Is there another kind of love you might find somewhere inside your soul? Let us pretend for a moment. Consider the possibility that love is not sex, after all you being a canine loveing person, have seen 5 male dogs following a bitch in heat. When she comes in and stands for them those neurons produce work and copulation is generally achieved by several of the males. No different for what you describe as love. But for a moment consider that there is a love of selflessness given up for your wife that is actually detrimental to perpetuation of species. Let us say you and your wife have not procreated, and are therefore not succcessful as biological specimens. Consider that there is God who said to you, "I love you, and to proove that I will die for you, and to proove I am God I will rise from the dead. You will give an accout to Me. I tell you, Love you wife, even as I have loved you. This is agape love, not sexual physical motor activity. This is the love which passes understanding to the evolutionist, I think because it is not that evolutionary theory is so compelling, but because the only explaination to account for this time, space, energy,matter continuum we call the universe, is God of the Bible and the evolutionist begins, not at the biginning of all possibilities, but at a beginning minus the possibility. Carl Sagan, famous astronomer, said that in a moment of uncharacteristic candor. He had predicated his life, his education, his reputation, and total persona to the same empty notion that love is nothing more than neurotransmitters operating a machine. I hope you take a closer look at these subjects and consider all possibilities. Beware of evolutionist and religious types who seek to procure your adoration by their pronouncements. Look and think for yourself, but with consideration for some possibilities you have heretofore dismissed completely. I remember the time when I believed George Gaylord Simpson, a famous comparative anatomist and paleontologist, just because he said it. Then he said some things which did not register with me and I started trying to understand the universe. Dr.Simpson wanted me to believe him because it validated his world view and therefore him. That makes you feel good. Being a devote to the theory of evolution is not nearly as important as being devoted to the love of your wife. That is a love which is not genetically mediated but emminates from your very soul.
Anyway, I wish you a merry Christmas and Happy New Year. I will be here at FR to look for you and perhaps we will meet again.
Songwriter