Final cut

Welcome to my final cut,
i hope you've enjoyed your stay.
but now that it's time to leave,
go the hell away.
two inches finished,
now you're half way gone,
it's time to show the irony
and where it went wrong.
this isn't just a cut,
it's an incision.
one made to my life
without my decision.
sure it burns a little,
but what's to expect?
you took a knife to my chest,
didn't even notice, then left.