I have this theory that the more important and intimate the...

I have this theory that the more important and intimate the emotion, the fewer words are required to express it. For instance in dating: 'Will you go out with me?' Six words. 'I really care for you.' Five words. 'You matter to me' Four words. 'I love you.' Three words. 'Marry me.' Two words. Well, what's left? What's the one most important and intimate word you can ever say to somebody? 'Goodbye...'