Blackbird AU has the best Dave/Eridan I have ever read

Dave <3< Eridan to be exact, but Dave's feeling is also close to human love because he is human, though also kismessitude because they are in a troll empire. It's human Dave and troll Eridan, in hate-love. Dave is a slave, but Eridan brings him trolls to kill like a pious priest bringing sacrifices to his god. And Dave plays along, even breaking one of Eridan's horns. And Eridan made that into a dagger for Dave. Goodness. Why are Eridan's quandrant-love/romances all so romantic in fanfics? Sorry, not all, but when I read one it tend to be very romantic and maybe I'm just lucky with Eridan fics.

Blackbird AU on AO3: http://archiveofourown.org/series/16945

AU by Nachte.

Now that's how many fics where it's romantic to kill in front of someone and then threaten to kill or maim that someone? If only in real life politic leaders who are in war with each just go hate-smooch each other instead of making war with entire countries.