Killua was your lover. You managed to befriend Gon, which caused you to meet his best friend, Killua. Thats how your story began. You met all his other friends and were always with him or Gon. Anyway, the story goes this way;

Killua has loved you and still does. You dont exactly know why, and you dont know why you love him, either, but who cares. Along as you do, it doesnt matter. You both were in the park. Killua has bought you something to eat while you both sat on a stone behind the store.