You probably know by now that love is funny. When we fall in love, we are so dizzy, so completely on cloud nine, that we forget the object of our affection does not exist in isolation. They come with family, friends, pets, colleagues—in short, a whole social world. Languages have long recognized this and remind us with proverbs. In English we say, Love me, love my dog. If you love me, you must also love my dog, my family, my friends—the whole kit and caboodle. Castilian Spanish has a similar saying: Quien bien quiere a Beltrán, bien quiere a su can. If you love Beltrán, you must also accept his dog—and, by extension, his family, his friends, and all the rest. I'm not making this up. Here are a few examples: — "Love me, love my dog. If you want to be friendly with me, you must be friendly with my dog—and with my companions." A. Johnson, Common English Proverbs (1958, UK). — "Love me, love my dog." Gettysburg Review ,...