We have unfinished business You, Me, and the Universe. There is something we are meant to do together.
Some reason that the reaper stayed his hand. Protected us from blade and pills. Some reason we did not move on into that great beyond even though we groped in the darkness looking for the sweet kiss of death.
The reaper did not want us because the Universe is not through with us yet. We have something to attend to, something that caused Charon to refuse us voyage.
We have some grand role left to play As lovers As friends As something. The reaper does not want us just yet.