champagne supernova!

what's actually the most important and intimate thing to say to somebody?
perhaps, the more important and intimate the emotion is, the fewer are the words which express it, like.-

will you go out with me? -six words 


i think i care for you.. -five words


you matter to me! -four words


i love you! -three words


marry me! -two words


so, what's the most important and intimate thing to say to somebody?
it's "goodbye" or maybe even "hello"...