Killing Carlie only matters if she's beloved.
(I did not know what her name was. In my mind it's "blonde girl". But I do that in real life too. This is the scientist cop or the bitchy room-mate or the hot reporter? They're all really interchangeable fluff. I was not joking. "Carlie" did not register.)
Was Gwen Stacy a despised witch of a woman who was sainted post mortem?
I remember Spidey going through Jean DeWolf's stuff after Sineater shot her, and he was blindsided by photographs and unmailed love letters that clearly suggest that she was into him and wanted to be Spider-Man's girlfriend.
Peter is oblivious.