Shulamith Firestone, writing in The Dialectic of Sex.
NY: Morrow 1970. She has a section on love, which makes some
bio-essentialist arguments about the differences between the sexes. Firestone
tends to see the condition of being in (or "falling in") love
strictly as the fallout from ideology, strictly as the emotional exploitation
of females by males, who do not love as women do.