Yup -- it's been commercialized with a lot of hype. It's a good way to sell chocolates, greeting cards, and other gifts. It's never bad to give recognition to your Sweetie, but that can be (and should be) done every day.
One needs to be strong even when alone. It'll help one become stronger when the right time comes.
Don't abandon hope. If it's meant to be, it will happen. Although you feel alone now, it could amount to being saved from a worse fate -- being paired with the wrong person and not realizing it or finding out until it's too late.
Thank you, Ray, all very true, especially your last point.