Most other systems of moral value are other-oriented: morality, after all, is meant to limit our behavior for the sake of others. But, for Nietzsche, others have value only insofar as they may, in one way or another, encourage our own strength. Indeed, given Nietzsche’s will-to-power psychology, it is hard to see how any genuine concern for others can even arise, except as a kind of sickness. If Nietzschean health is a flourishing of drives, each of which is concerned with its own strength and enhancement, then the only way I can will or desire your own flourishing, for your own sake, is if some of my drives are somehow twisted toward the ends of your drives. In other words, some part of me has to be tricked and turned into a pursuit for your own sake. That, technically, is a Nietzschean sickness. But that, on the other hand, is just what love is: a selfless concern for the welfare of another. Nietzsche is free to redefine love any way he likes, of course, but that would not change the fact that love, as we know it, is a disease, in Nietzsche’s view.
The closest Nietzsche’s philosophy comes to allowing for the possibility of healthy love is when a superior individual is so full of power that it pours out in all directions in a flood of noble generosity. But this again is not quite love as we know it, since it is not at all focused on others. It is accidental, and the lucky recipients of this generous outpouring could easily be replaced by others without affecting the attitude of the great soul. My love for you, we like to think, is more about you than it is about me, and that is simply what should not happen, according to the standards of Nietzschean health.
My valuation of Nz’s revaluation - Charlie Huenemann