Natsuki has been acting strange and seems to have his head in the clouds through everything he does. After being interrogated by Minamo and the others, he reluctantly confesses to them that he kissed Atri in the ocean. 
Very well. It's because I like you!
!عظيم. هذا لأنّني أحبّك
Ich weiß es! Weil ich dich liebe!
Ya lo sé. Es porque me gustas.
Ya lo sé. Es porque me gustas.
C’est ça !
J’éprouve de l’amour pour toi !
Ho capito, è perché mi piaci!
Entendi! É isso,
porque gosto de você!
Всё верно! Любовь!