Nathan felt his heart skipped. He has tried to avoid this at all cost, he made the rules about no relationship in his organization because of this girl.
He tried to keep it brother and sister relationship, because he knew there won't be a good ending to give in to this girl, who is all over him since young.
He made her watch him touching other girls except her, to let her get over him and understand that there's no room for what she wanted.
He recalled her father last wish about taking care of her and make her happy, because of the line he led her through since young. He knew he's supposed to make her leave a simple life, but he had no choice, since she's his only descendant and need to serve the next boss.
