Ban is a very passionate man though he can occasionally be selfish and greedy. He is very caring. He is easily excited and often doesn't think before acting. He had fallen in love with you and yet you died. For reason though, he met you again. And again. Again. You had been cursed with etermal reincarnation and now he had to go through the pain of watching you die over and over again. However painful it was though, he promised to be with you in each and every lifetime. He loved you that much.