But for many of the masses, this is not what they care about (even if they should?). Rather, they want the progression of erotic love (1-4). — schopenhauer1
I don't think it is at all a deficiency that people prize erotic love. As embodied beings who experience the world through the physical senses, we ARE carnal beings. The sexual drive goes back a long ways. The wellspring of life ought not be disparaged. (Screw the Apostle Paul.)
Just guessing, but I don't think our emotional apparatus begins with well-differentiated forms of love -- erotic, philia, storge, agape, etc. Our first simple love is for mama and over time (decades) is differentiated. Young children evidence simple caring--simple philia. Children have sexual urges too, if maybe not erotic desire. By 12? 13? the vaguely sexual becomes specifically erotic, whether acted on or not with others. And our sense of caring, the sense of our capacity to comfort others. and empathy grows as we move into adulthood--not at all evenly across the population, of course. Well developed adults display diverse love -- erotic, filial, maternal, paternal, agapaic, civil even, Love of country.
BUT, being embodied as we are, it is physical erotic pleasure that is the foundation of long-term family relationships. (Non-sexual relationships, like college friendship, can last into old age too.)
Of course, none of this mattered centuries ago. Love had not much to do with marriage, procreation, and a domestic partner. That is relatively new. — schopenhauer1
How many centuries are you going back? Ordinary English villagers lives 600 years ago displayed evidence of courtship, marriage for love, domesticity. Kings, queens, very large landowners, (earls, dukes, etc.) were under obligations to make strategic marriages. You know, if your estate covers a couple of counties in England, you are not going to marry a woman with nothing, no matter how nice she is. You jolly well better marry the daughter of another wealthy landowner, and maybe you will be richer for it. "What's love got to do with it?"
Human psychology hasn't changed much. (That's my theory.).
Courtly and romantic love" as depicted by troubadours and poets was new back in the medieval period. It wasn't practical advice, it was 'romance'. On the other hand, the Song of Solomon (it's in the Bible) was written... maybe 900 B.C. Male and female POVs alternate.
7:1-3, 6 “How graceful are your feet in sandals, o queenly maiden!
Your rounded thighs are like jewels, the work of a master hand.
Your navel is like a rounded bowl that never lacks mixed wine.
Your belly is a heap of wheat, encircled with lilies.
Your two breasts are like two fawns, twins of a gazelle.
How fair and pleasant you are, o loved one, delectable maiden!”
As the apple tree among the trees of the wood, so is my beloved among the sons.
I sat down under his shadow with great delight, and his fruit was sweet to my taste.
He brought me to the banqueting house, and his banner over me was love.
Stay me with flagons, comfort me with apples: for I am sick of love.
His left hand is under my head, and his right hand doth embrace me.
Don't sit under the apple tree with anybody else but me?
I don't know whether Solomon existed, and if he did whether he had anything to do with the poetry, but what the poet is talking about here is not strategic or arranged marriage, but good old carnal love.