It seems that the excess baggage of culture undermined what I was attempting to discuss. "Love" as loins rubbing together was not that to which I was referring, nor romantic feelings, but more at Agape.
"Agape (ag-ah'-pay) is the Greek word for love, one of many words for love which they had. It is however, the highest form of love, which the Greeks could conceive of, love which knows no boundaries and persists even despite ourselves. Agape is unconditional love, love which seeks only itself in return. Agape is love which gives and asks for nothing, love which persists even though everything around it is at odds. Agape is the form of love which binds souls together life after life for millennia. The capacity for such love is what sets mankind apart, and it is this which makes us divine."
http://zagreus.com/agape.htm
littleK mentioned unconditional love of a pet....... of this I admit I have seen it with all 6 of my 4-legged roommates, and it appears true to the definition of agape that these animals show such purity of spirit, of living in and for the moment and show affection without hesitation.
The lack of understanding of why one loves another demands reflection as to what causes the presence of the emotion of love, and it seems to me that whom (or which) is loved represents a trait, feature or avatar of an ideal held by the one loving.
The love one has for a family relative or friend could distill down to an ethical idea of the community, which is based upon ancient principles of survival of the group, and not in an inherent recognition of the individual's commitment as keeper and nourisher of the endless possibilities for each other.
But the world's history is replete with tales of personal sacrifice, even death as a result of love, which is beyond the bounds of personal survival.
Who amongst us would not save the life of another if they could? But who would save the life of another when it puts one's own life in danger? This is not logical, yet it exists, and if one moves to understand why a person is willing to give up their life to save another, perhaps Shopenhauer had it right.
Schopenhauer would call it merely the falling away, the peeling away of the Cartesian world of time and space in the mind of the individual revealing the ineffable, and the "sameness" of soul of others in time and space.
So, complete love from incomplete understanding reflects a conflict illogical only from the perspective of time and space, and it's very presence, and reflection of its existence draws back the curtain which shades the corporeal world revealing that which is named by many words.