You do know that you can be romantic on more than one day a year, don’t you?
In fact, I think romantic things are more appreciated when they are done on any day other than February 14th because they are unexpected.
It shows that what you have done (a small gift, a little note or a dinner out) is not done out of obligation or to fulfill the expectation Valentine’s day brings.
No, it’s because you want to show your love, at any time.
You do not need a specific calendar date to express love. You should do it on every occasion.