As usual, prepare for the shit fest that is my headcanons.

Nico sobbed as the words rang threw his head, piercing the once happy thoughts like a knife.
Hazel nearly murdered Will when she found out, trying to comfort her brother with very little success rate.
Jason was nearly as, if not, worse, than Hazel when it came to being over protective of the son of Hades, having to be held back by Percy and Frank when he over heard two Apollo cabin members talking about how "That creepy asshole deserved it."
Annabeth was furious, at the world, at the Gods (Mainly Aphrodite), and most of all, at Will.
Percy barely calmed himself at the news, outraged that his practically little brother got his fragile, bandaged heart shattered by an asshole who never loved him back.
Leo? He set fire to the Apollo cabin, laughing as it nearly burned, Percy waiting till the last second to put it out. Funny thing is, it was only Will that was in there.
Chiron's still trying to figure out if that last part was known or if it was a lucky mistake.
Will laughed as he saw the fragile being that was his fake boyfriend, just a dare from one of the Apollo members, clinging to Jason's chest, the seven trying to calm him down.
He laughed as he saw Piper trying to charmspeak the pale as ice boy to eat.
He laughed even harder when Frank turned into a cat, trying to get Nico just a little warmer.
One day, all the medics were circled around one patient, the worry sketched on their face with too much detail for comfort.
"Hey, what's going on?" Will asked, grabbing some gloves.
"It's Nico. Will, he tried to kill himself." Jessica, one of his siblings, told him.
And suddenly, he wasn't laughing.
He didn't laugh as a black shroud was burned.
He didn't laugh as the laugh of the pale boy, the same one he was once comforted by, plagued his nightmares.
He didn't even crack a smile as he died the same way a month later, the seven not even caring, even laughing a little as the yellow shroud was burned.
All they cared about was justice for the ebony haired brother they once had was served with a side of death.