The Tsviets are FUCKING SOLDIERS! Rosso and Azul will not be ignoring Nero without getting reprimanded and/or fought by him. Shelke will not be shying away from Nero and telling him to not come near her. I imagine that would be met with something along the lines of "Excuse me, lass, what the hell did you just say?" Followed by a beat-down. Especially if Weiss was in the vicinity (which he was).
Your Nero is a whimpering pile of emo. Cut it out.
Going to be writing a monster of a review here.
(PS: ... What the hell? Just... No. You didn't even fucking warn for ED triggers. I don't care if I don't have one, that's the kind of shit you warn for. And since when is Nero so susceptible to anything Azul says that he would develop an eating disorder in response to what the man says?
Lastly, OHAI surprise sex! I'm skipping you, considering that you weren't warned for. This fic is rated M, but its not tagged as romance and doesn't mention that two people will be having sex at all.)