Crazy, stupid, hilarious 'Love'

I don’t quite get the title of “Crazy, Stupid, Love.” All the words make sense. But what is that second comma doing there? Without it, the phrase is a clear declaration of the insanity of romance — an insanity almost none of us is quite sane without. I certainly get the movie “Crazy, Stupid, Love,” though. You might say it’s an argument for the pleasures of monogamy, once the delights of playing the field have worn off. But describing the film that way misses the subtlety of this comedy, one that’s sweet without being cloying, as too many romcoms are.