I have seen a number of magazines going on about the best perfumes to get your man or lady for Valentine's day. The recommendations are mainly based on ridiculous reasons like brand, cute packaging, trendy ingredient or "must-have". The only Valentines-perfume-story I have read that made sense was one about Shalimar which is an iconic perfume not only as an oriental but as a perfume created for romantic reasons. Giving someone this makes sense. Crazy arbitrary perfume shopping does not make sense. Just like crazy arbitrary Valentine's shopping doesn't. So relax. And just show your beloved or your crush that you think they are special. In your way. And yes, I believe that Valentine's Day should be celebrated. I believe that every special day should be celebrated in its own particular way, the more special days the better.
If scent is your way, then I think you might find this post, which I wrote as guidelines for Christmas-perfume-shopping, useful.
Have a lovely Valentine's Day & don't forget to treat your own heart with special care.