philia includes the very strongest affective relationships that human beings form; it includes, furthermore, relationships that have a passionate sexual component.
Nussbaum argues that philia must not be reduced to ‘friendship’ because it encompasses all intense affective bonds, including family love and sexually passionate relationships, making English ‘love’ the more adequate translation.
, The Fragility of Goodness: Luck and Ethics in Greek Tragedy and Philosophy, 1986thesis