Saint Valentine would probably be amazed that so much of the emphasis on the day named for him is about romantic love. I think he was focussed on the kind of love and compassion that makes people help one another.
Of course in a happy marriage that sort of love is as important as the romantic kind, but that's not the only place it should be found. Parents and children love each other, and so do other family members. Good friends share love, and we can all show love by helping others. Sometimes just knowing somebody cares can be a big help to people who are having a rough time.
And giving love can be as wonderful as receiving it.
Let's not just show our love to others on Valentine's Day, but all year round. We'll be happier people if we do.