why white day not to popular like valentine day??

everyone know valentine day. Valentine is the day where someone show his love or care to someone that he/she loved. but why white day not popular to? white day is a similar day like valentine day, where someone show his love too. but what makes white day and valentine day is different? actually white day is connected with valentine day, because when valentine day come, every girl show his love to her boyfriend or to boy that the girl likes, after that,in the white day the boy response the girl love by show his love to the girl. so we could say that if the boy response the girl love, they will started a relationship, but if not,that's to bad. wahaha.

but i still don't know why valentine day more popular than white day? is there anyone can tell me why? thx b4..