If I were him, I would totally ignore her wish to die. Really, why I should bother thinking about people that I don't even know and sacrifice my loved ones? That's no brainer, no need to even think twice about it. She can hate me for that, idc. It's not her fault those people gonna die, not at all. Tbh that's kind of cruel of her. If she really loved him, she shouldn't have asked him to do something so terrible. She clearly put others' life and his happiness on a scale and concluded that he was less important.