I steel myself to ignore his taunts and his coarse language. I no longer care what he says or does. It doesn't matter anymore. I am detached, contained in my own private world where he cannot reach me. It is my last refuge.
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.