After the whole thing with Gaea awakening and you and the other 7 saving camp along either Praetor Reyna,

You stumbled across a conversation,

“So where were you?” Will demanded, he was wearing a green surgeons shirt with jeans flip flops, which was probably not standard hospital protocol. “What do you mean?” Nico asked, “I’ve been stuck in the infirmary for like two days and you don’t come by. You don’t offer to help.” “I. . . What? Why would you want a son of hades with people your trying to heal? Why would anyone want that?” “You can’t help out a friend? Maybe cut bandages? Bring me a soda or snack, or a simple, Hows it going, Will? You don’t think I could stand to see a friendly face?” “What. . . My face?” The words simply didn’t make sense either, Friendly face. Nico Di Angelo “You’re so dense.” Will noted, “I hope you got over that nonsense about leaving camp half-blood.” “I— yeah. I did, I mean, I’m staying.” “Good, so you may be dense but you’re not an idiot.” “How fans you even talk to me like that? Don’t you know I can summon zombies and skeletons and—“ “Right now, you couldn’t summon a wishbone without melting into a puddle of darkness, Di angelo.” Will said, “I told you, no more underworld-y stuff, doctors notes, you owe me at least three days of the rest in the infirmary, starting now.” Nico felt like a hindered skeletal butterflies were resurrecting in his stomach, “Three days? I—I suppose that be okay.” “Good now—“ A loud whoop! Cut through the air, Over by the center of the hearth, Percy was grinning at something Annabeth just told him.. You blinked and stopped, they get to spend their senior year together? Cool.