There used to be a time when I wasn't a fan of Valentine's Day. I used to give the same spiel that lots of people do - 'It's too commercialised', 'Love should be celebrated every day of the year', 'It's just popularised to make money'. Yes you're probably right. But now I think 'So what??'
Christmas is commercialised (and a lot of other religious holidays in their own countries) - does that stop people getting together with their family and sharing in the good times? The 14th of February is a date on the calendar - why can't you celebrate love on this particular day? Pancake day is popularised now - does that make you hold back on contributing towards the sales of pancakes and chocolates?
The two of us express our love multiple times a day, and so do a lot of people. The nice thing about Valentine's Day is that we all do it together, in our own individual ways. It's fine to go over the top and it's fine to do nothing. Do whatever you want - the world we live in, everything has a way of making money, it doesn't mean you need to hold back, you'll know what's right for you. And if you're single, that's okay too, because I'm sure there's at least one thing or person you love in the world that you can dedicate one whole day to.