I realized then the truth about all love: that it is an absolute which takes all or forfeits all. The other feelings, compassion, tenderness and so on, exist only on the periphery and belong to the constructions of society and habit. But she herself--austere and merciless Aphrodite--is a pagan. It is not our brains or instincts which she picks--but our very bones.
-- Lawrence Durrell --
from Justine, Part II
I think that there are a number of examples of this in the novel: Darley, Melissa, Justine, Nessim, Mountolive, Leila, although it is not clear just whom these characters are in love with.