A sad excuse for guys to get with girls sjust to get laid; girls will go along with it because they are stupid, and pathetic. By meeting a guy on valentine's day they will get with them because they think they are something special, and the idea of them spending this sad marketing ploy alone, is something they can't deal with.
Guy: Wanna be my Valentine? *Wanna bone?*
Girl: Yes indeed (I need someone to make me feel less lonely as I am extreamly pathetic)