ite ▁first ▁ins inu ating ▁that ▁it ▁was ▁rom antic ▁in ▁The ▁T itan ' s ▁Cur se , ▁when ▁Per cy ▁undert akes ▁a ▁quest ▁to ▁free ▁An nab eth ▁from ▁the ▁T itan ▁Atlas . ▁However , ▁Per cy ' s ▁first ▁move ▁towards ▁a ▁serious ▁relationship ▁does ▁not ▁occur ▁until ▁the ▁final ▁pages ▁of ▁The ▁Last ▁Olymp ian . ▁ ▁Per cy ' s ▁other ▁important ▁rom antic ▁relationship ▁occurs ▁in ▁the ▁inter im ▁of ▁his ▁first . ▁As ▁the ▁final ▁battle ▁with ▁the ▁Tit ans ▁approaches ▁after ▁The ▁Battle ▁of ▁the ▁Lab yr inth , ▁Per cy ▁sp ends ▁time ▁with ▁his ▁mort al ▁friend ▁Rach el ▁D are . ▁Their ▁relationship ▁causes ▁conflict ▁between ▁Per cy ▁and ▁An nab eth ▁Ch ase . ▁Tow ards ▁the ▁end ▁of ▁The ▁Last ▁Olymp ian ▁Rach el ▁real izes ▁that ▁her ▁att raction ▁is ▁not ▁to ▁Per cy , ▁but ▁to ▁his ▁myth ological ▁world , ▁because ▁of ▁her ▁dest iny ▁as ▁the ▁next ▁Oracle ▁of ▁Del phi . ▁ ▁Three ▁other ▁characters ▁in ▁the ▁nov els ▁are ▁rom ant ically ▁interested ▁in ▁Per cy , ▁though ▁he ▁remains ▁mostly ▁ob liv ious . ▁N ico ▁di ▁Ang elo ' s ▁hero ▁worship ▁of ▁Per cy ▁turns ▁into ▁an ▁ever - w ors ening ▁cr ush ▁on ▁him ; ▁at ▁the ▁same ▁time , ▁N ico ▁res ents ▁Per cy ▁because ▁he ▁bel ieves ▁the ▁son ▁of ▁P ose id on ▁allowed ▁his ▁sister ▁Bian ca ▁to ▁die ▁in ▁battle .