If I Had You - Malec
Set after City of Lost Souls.
Alec is absolutely miserable. He and Magnus are done and he has no one to blame but himself. He just wants to get back to how everything was before, but how can he do that? How can he forget everything that's happened? He doesn't think he can. And if he's being honest, he doesn't want to. What he really wants, more than anything else, is Magnus.