Oh, BTW, I don't know what she means by that, other than what's obvious. My best guess is that she didn't expect to die as a hero, although the fact that Snad died in a somewhat anticlimatic way takes away from that a bit. (I think she would have trouble thinking of herself as a hero and Snad's golem crushing Snad gives her another way to think of Snad's death.)
I don't know how Nishi expected to die. Maybe she expected Sillice's stupidity to do her in at some point. I think it's more likely that she meant that she had expected Snad to win. Or maybe she just never thought about it. IDK, though.