Hatsumi is aware that Nagasawa is unfaithful, yet she chooses to remain silent about it. Her love for him runs deep, and instead of confronting him, she accepts the situation without making any demands on their relationship. This acceptance signifies the complexity of her feelings, intertwining love with selflessness.
Nagasawa, on the other hand, seems to have a lack of self-worth, believing he is not deserving of someone as remarkable as Hatsumi. His admission reflects his awareness of the emotional imbalance in their relationship, as he recognizes her value and his own shortcomings.