At Christmas I had two relationships end suddenly. It was completely devastating, and I can still hardly believe it all happened as it did. I was devastated for a while, it's getting better now. But I'm older, and have been through this kind of stuff.
We usually exagerate our emotions and work ourselves into a real sadness and depression by comparing our lack to other people's seeming ability "to have." However, take a closer look at most of the people in relationships. I'll be most are in not very good relationships. And they put aside all their unhealthy behaviors to try to have one good day/night on Valentine's only to watch them fall apart sooner or later.
It's okay to be single. In order to find the love you want, you have to become the love you seek. You are the answer to your problem, the helper you've always needed. When you get a hold of that, you suddenly become empowered, and attractive, and people will start flocking to you.
Trust me on this. I've been working through grief over my losses, but I have no regrets about my role in all this.
There is someone for you. But become the person you hope to find, and they'll be there when you're ready.
And don't sweat this Valentine's day crap. My Christmas day sucked like new vacuum, but it was just one day, and there are all kinds of new opportunities rolling my way. You be that way too. You deserve a great life.