You don't have to be a writer to write a love letter.
You just have to be yourself.
Here's a fill-in-the-blanks love letter to get you started:
This Valentine's Day I want you to know that I think you are ____________.
When you __________________________ it makes me _________________.
I'm so very ________________ you are _______________.
You can write to your partner, your spouse, your children, your friends.
Try it. I'm willing to bet it will make you feel good, too.