Marginalium

Love is about betterment. Love, in the ancient Greek world, is not about sacrifice but eudaemonia:

Diotima shows Socrates that love is a kind of joint ascension towards something greater. Love leads us towards good and beautiful things, the highest of which is knowledge. Loving then, according to Diotima, is helping each other to become better people

Probably, not enough is written about friendship. But love is about friendship first. See also romantic friendship.