Where the passion is strong, but the love is not.
You know, like, really, deeply, utterly, and totally in love, but the other person doesn't even know you exist. It's like, you're just a ghost, floating through the void of unreciprocated love.
But don't worry, it's not the end of the world. You'll find someone who likes you for who you are (or at least, someone who won't run away screaming). Or, you'll learn to appreciate the beauty of the universe and become a hermit.