Accepted Answer
c) unrequited love Unrequited love or one-sided love is love that is not openly reciprocated or understood as such by the beloved. The beloved may not be aware of the admirer's deep and pure affection, or may consciously reject it. The Merriam Webster Online Dictionary defines unrequited as "not reciprocated or returned in kindDuke Orsino is a wealthy man who governs the country of Illyria. He is in love with his neighbour, the Countess Olivia and sends messages of love to her, refusing to be put off by her answers that she is in mourning for the loss of her father and brother and is not interested in him.