Nothing seems more ridiculous than to ask whether Jesus celebrated Valentine’s Day. For one thing, Saint Valentine lived about 250 years after Jesus, and the feast honoring him was established in AD 496. For another thing, many people would say that it’s sacrilegious and crazy to think Jesus might have had a wife or a girlfriend. But a surprising number of people think that Jesus was secretly married, and that his wife was Mary Magdalene. It’s worth asking why anyone would think so. It’s rather an old idea, but it became famous in this century with the publication of the …