Hikaru is desperatly in love with you, so he waits each lifetime, only to have the same results: you despising every bone in his body. You always figure out what, who he is, and the cycle repeats. 

Because Hikaru may love you, but you will never pine for a monster. and with every death, he waits, and tries again, because maybe one day he will figure it out what it takes to make your heart sing. Maybe one day you wont care that he is the king of curses and will give him just a drop of affection.