If you have a pervasive, ongoing, impossible to escape, SENSE... that someone from your past whom you fell madly in love with IS, even empirically, given every attempt to find someone to contradict this notion, TRULY one-of-a-kind, and therefore eternally irreplaceable, is it possible that you could actually be correct? Yes, I realize that that is the run-on sentence from hell, but bear with me. What if the possibility of the above scenario being true ...