Re: part II
I'll grant you that he does protect Harry, though it's only due to his obligation to Lily. But in general?
Since we already went through this I'll just give chapter references to places that has examples of Severus protecting, trying to protect or showing distress at inability to protect people who aren't Harry:
COS 11
COS 16
GOF 25
OOTP 32
HBP 15
HBP 28
DH 15
DH 33
Since we already went through this I'll just give chapter references to places that has examples of Severus protecting, trying to protect or showing distress at inability to protect people who aren't Harry:
COS 11
COS 16
GOF 25
OOTP 32
HBP 15
HBP 28
DH 15
DH 33