True Love Is Reciprocal: Thomas Aquinas on the Love of Friendship

One of the most important topics that Thomas Aquinas discusses in his extensive corpus is the love of friendship, which is a unique form of love aimed at persons. Yet Aquinas's teachings on this are perplexing, for he claims that this love always produces union between lover and beloved, and that it is always a mutual love. This implies that one's love depends on reciprocation from the beloved, which seems implausible given the possibility of phenomena such as unrequited love. A common interpretation of Aquinas's account of the love of friendship maintains that it is enough that one desires union and mutuality for such love to obtain even if such desires remain unrealized, but in this paper I reject this reading and argue that achieving union and mutuality is essential to this form of love. This novel interpretation ultimately reveals that the love of friendship is an intrinsically interpersonal act.