The narrator observes Delia engaging in everyday tasks, like brushing her hair and taking care of the dog, which evoke strong feelings of affection and dependency. These simple gestures highlight her importance in the narrator's life, as they reveal a deep emotional connection that goes unspoken. The narrator struggles with the desire to express these feelings, fearing that doing so would force them to confront the painful reality of losing Delia someday.
This fear of loss serves as a barrier to genuine acknowledgment of their relationship, as equating Delia to a drug signifies a reliance that the narrator is not prepared to face. The act of accepting her significance would mean embracing the possibility of her absence, which is an overwhelming thought. Consequently, the narrator remains silent, caught between love and fear.