Springtime by the Window

In this chapter, we learn that the hot weather is making it difficult for the protagonist to express his love for seno. He feels that he has lost his feelings for her, and that she is the only person in the world who can help him express his feelings. He asks her about the festival he went to with her and sugimoto, and she tells him that she went with him, too. He tells her that he wants to marry her, but that he does not want her to depend on him, because they are friends. He says that he always thought that he was wrong, and now that he is alone, he feels lonely