Do this is the last chapter of BoO in nicos  point of view so this is a spoiler
    NICO'S POINT OF VIEW.                 
:-D :-D :-D :-D :-D :-D :-D :-D :-D :-D :-D :-D :-D :-D :-D A loud whoop cut through the air over by the hearth in the center of the common, Percy was grinning at something Annabeth had just told him. Annabeth laughed and playfully slap his arm. I'll be right back," Nico told Will," Swear on the river styx and everything." He walked over to Percy and Annabeth, who were both still grinning like crazy. "Hey man," Percy said," Annabeth just told me some good news. Sorry if we got a little loud." "Were going to go to spend our senior year together ," Annabeth explained," here in new York . And after graduation-" "College in new Rome!" Percy pumped his fist like he was blowing a truck horn. "Four years with no monsters to fight, no battles, no stupid prophecies. Just me and Annabeth, getting our degrees, hanging out at cafes, enjoying California_" "And after that . . ." Annabeth kissed Percy on the cheek. "Well Reyna and Frank said we could live in new Rome as long as we like."
"That's great," Nico said. He was a little surprised to find that he meant it. "I'm staying too, here at Camp half-blood." "Awesome!" Percy said. Nico studied his face-his sea green eyes, his grin, his ruffled black hair. Somehow Percy Jackson seemed like a regular guy now, not a mythical figure. Not someone to idolize or crush on. "So," Nico said," since we are going to to be spending at least a year seeing each other at camp, I think i should clear the air." Percy's smile wavered. "What do you mean?" "For a long time ," Nico said ," i had a crush on you. I just wanted you to know." Percy looked at Nico. Then at Annabeth, as if to check that he heard correctly. Then back at Nico. "You-" "yeah," Nico said." Your a great person. But i'm over that. I'm happy for you guys."                                                                                 
  "You . . . so you mean-"      "Right."
Annabeth's  grey eyes started to sparkle. She gave Nico a sideways smile. "Wait," Percy said. "So you mean-" "right," Nico said again. "But its cool. We are cool. I mean, i see now . . . your cute, but your not my type."
"I'm  not your type . . . Wait. So-" "see you around, Percy," Nico said. "Annabeth." She raised her hand for a high five. Nico obliged. Then walked back across the green, where Will Solace was waiting.