A while ago I came across a fic where the gist of the summary promised an angsty fic where Kurt had to grapple with the fact that he has to somehow take care of / kill / ? Blaine, who he loves (edited my post a bit because I only read the summary I'm not sure it was necessarily kill) .
I'm pretty sure I saw it on fanfiction.net and that it was a slayer/vampire sort of story. But I've spent hours trawling ff.net and sadly can't find it. I'm kicking myself for not reading it when I first came across it--if anyone can point me in the right direction you'd have my utmost gratitude!
I'd also welcome any Klaine recommendations that have a similar theme of it being on opposite sides of someone you care for.