A very clichéd story: the killer fell in love with the target. Later, the lover did not get married, and she discovered that she fell in love with the man who wanted to kill her by mistake. Since I can't be by your side, then I will leave; I still love you, no matter what you want, I will give it to you, no matter what you say, I will do it, even if it takes my life, I have no regrets.