Haruki collapses after saying goodbye to Kasuza, and Setsuna, who he betrayed, comes to take care of him.  Haruki is too overcome with guilt to move, and Setsuna tries to pretend she knows nothing as she struggles with guilt of her own.
That's why I changed my mind.
Deswegen habe ich mich umentschieden.
Por eso cambié de opinión.
Por eso cambié de opinión.
alors j’ai soudainement 
changé d’avis.
Por isso que mudei de ideia.