He is basically saying:
I don't care whether I survived or not. You broke your promise of protecting Rin.
He says it as if he isn't himself. Or it could be Kishi's way of emphasis.
Does anyone else find this text on page 11 a bit strange? Whether *I* died or not is not important. Why would he single out that word?
maybe it is like on dbz with majin vageta where it is vegeta but being controlled by babadi :OOOO