Why is Cupid associated with Valentine's Day?
Cupid (Greek: Eros) is associated with Valentines Day because he
is the god of sexual love/desire. His parents were the god of war
Mars (Greek: Ares) and the goddess of love Venus (Greek:
Aphrodite). Because of his mother being goddess of love, and
himself being the god of sexual desire, Cupid has become a big part
of Valentines Day. The way he would get people to fall in love with
each other was to shoot his special arrows at them.