User blog comment:FairyRaven/Fairy Tail Chapter 328: Zodiac, Review and Commentary/@comment-1535822-20130419131048/@comment-1535822-20130419182121

because future lucy die not past if you kill teh past self you in teory don't exixt anymore if you kill your future self noting happend because you live until you become that one then you got killed by your past self.