Hate the manga

I recommend myself to not read it because it is so confusing(the last chapter) the girl fell in love with one of the twin and he die and then the next twin is torment and torture her because he is claiming that is she kill his twin but he love but he can't say that because he don't want to betray him dead twin and then the only why for him to like her is become his twin so he basically become his twin and in the next 10 years when he meet her again and stated that he is dead and he is the twin