Well, technically he wasn't that wrong. Think about it...
I don't know how it was 30 or 40 years ago, but now it is more a "Woman's Day". Just try to not give something to your girlfriend on Valentine's Day. You'll spend the whole week sleeping on the couch.
Today, you have to "sell your ass" to your girlfriend, you must show her that she deserves you. And then she'll start b*tching you with the idea of wedding, her "biological clock" (need to have childrens before she gets too old) and so on...
As Les said, piss on Valentine's Day.