The narrator describes a reaction to someone who has been taunting and using offensive language towards them. Despite the negativity, they have developed a sense of resilience and have learned to disregard the hurtful comments. Their determination to remain unaffected by this person highlights a newfound strength.
This emotional detachment allows the narrator to create a personal sanctuary, a space where they feel safe and free from external harm. It serves as a protective measure that offers solace in the face of adversity, reinforcing their sense of self and autonomy in a challenging relationship.