Read the following context and choose the best option to answer the question.
Context: " " Because you believe that I cheated you , " he answered immediately . " You did , " I said , out of reflex , because in truth , I was n't sure I 'd believed that for a long time .
Question: Why was the narrator so animated .
Options: 
- The narrator felt out of touch .
 - The narrator felt isolated .
 - The narrator felt vindicated and affirmed .
 - None of the above choices .


The narrator felt vindicated and affirmed .