She needs to realise he is a beta cuck. The average Japanese man has been made to be emasculated and not have any interest in the opposite sex, they teach them this from school with things like "Morality councils", having rules in school to not date or interact with the opposite sex, never to express themselves, to stop any normal bodily desires and call them perverts if they even so much as look at someone. Then they are forced to work practically all hours of the day, 7 days a week eventually working them to death and complain the birth rate is dropping like a stone. This guy is so indoctrinated it is painful to watch.