Carrie Classon’s, “Blue Yarn: A Memoir,” is available at Amazon, Barnes and Noble, and other fine stores. Learn more at CarrieClasson. com. My husband Peter does not believe in Valentine’s Day. I mean, he knows it is a thing. It’s just a thing he prefers to ignore. “Stupid!” That is Peter’s verdict. Peter takes offense whenever there is a big marketing effort aimed at getting him to buy things in order to show affection. He feels this way about Christmas, believing it has become too commercialized. He feels this way about birthdays, insisting that the day of his birth is nothing to celebrate. Buying gifts for Peter is pretty easy because he doesn’t want any. But Peter is one of the most generous people I have ever known. He never hesitates to pick up the bill. He is always a generous tipper. He contributes to organizations he believes in all the time. It just bothers him when he is expected to come up with a gift. He finds it stressful and annoying, and so I learned, long ago, that…