Wataru goes to ask Nagi why Isumi is dressed in another high school's uniform, and finds out that Izumi has fallen for another guy in another high school and attempts to see him.
Did you think I could just 
leave you to your own devices?!
¡¿Creía que iba a dejar que 
se las arreglase como pudiera?!
Você pensou que poderia me deixar para trás?!