She had screamed his name when she died, begged for him to come and save her. But he couldn't, and it was all his fault that she wasn't here now.

I think I started liking Sirius somewhere between 4 and 5th year. What can I say? He grew up. Not in the sense that he became more mature, to be honest I never think he will grow up in that way, but he became, well, fit.