So, my idea for this isn't yet fully formed, and I'm still kind of confused as to what this prompt could be; it could go a number of directions, so I'm sorry if the description isn't that great.
Hopeless- Hopeless. The one word to describe Annabeth and Percy's relationship would be "hopeless." Although the two-time Heroes of Olympus are the camp's "It-Couple," the couple has their own problems. And one night, the now-daily arguments escalate into something more, something that leaves Percy and Annabeth's apartment barren, but for the single note left behind, explaining all that had happened to the demigod world. (Non-Mortal AU)