Yi Yazhu didn't want Mo Qiang to die. They had some differences but there were no grudges as deep as to want one of them dead. What was more, even if a mer's virtue was important, it was not as important as one's life.
He also heard from Mo Qiang that her husband was pregnant and she was going to be a mother. Though she said that she was not prepared to become one, Yi Yazhu could see that Mo Qiang was eager to meet her child.
He who had lost his mother in one way or another, knew the pain of growing up without one very well. Yi Yazhu didn't want Mo Qiang's child to grow up without knowing his mother.
So he decided that he might as well help Mo Qiang with his body.
'You—- are you a fool, little thief?' Mo Qiang asked him with a painful smile on her face. 'Do you even know what will happen to you if I sleep with you?'
