Probably the purest expression of romance I have ever witnessed is the scene in “A Charlie Brown Christmas” in which Sally looks at Linus and a hundred red hearts spontaneously burst forth over her head, each one throbbing wildly. She claps her hands so quickly, that they reverberate like butterfly wings. A smile wafts across her face, which vibrates with happiness. She runs over to him, clasps her hands together, as if in prayer, and gushes, “Isn’t he the cutest thing?” whil