Song from a Broadway show

there's a fine, fine line between a lover and a friend;there's a fine, fine line between reality and pretend;And you never know 'til you reach the top if it was worth the uphill climb. There's a fine, fine line between love and a waste of time. There's a fine, fine line between a fairy tale and a lie; and there's a fine, fine line between "you're wonderful", and "goodbye." I guess if somone doesn't love you back, it isn't such a crime, but there's a fine, fine line between love and a waste of your time. and i don't have the time to waste on you anymore. I dont think that you even know what you're looking for. for my own sanity i've got to close the door and walk away... There's a fine, fine line between together and not. And there's a fine, fine line, between what you wanted and what you got. You gotta go after the things you want while you're still in your prime.. There's a fine, fine line between love and a waste of time.