SEV IS GOOD! Severus knews what is best for him! he knows that the one who believed him was DD!(poor Sev he had to kill him) he did't want to do this but he had to! he is good but now is alone! i think that when everything is over he will want to kill himself because he did something sooo bad and he will not forgive himself! poor good sev!(sorry i can't write very well in english cause i am not english)!