Valentine's Day is a holiday when lovers express their affection with greetings and gifts. It is also called St. Valentine's Day. The holiday has expanded to express affection between relatives and friends.
Valentine’s Day is a holiday people celebrate to celebrate the gift of love. I think that alone is a fine answer. Happiness on Valentine’s Day is being greatful for all that love us, romantically, platonically or famillialy!
Sorry if that was cheesy, have a good Valentine’s Day!!!