Because you didn’t seem to read it the first time
Anger and defensiveness are common initial responses, as narcissists perceive criticism as a personal attack on their character or abilities. They may lash out at the person providing the feedback, attempting to discredit or intimidate them to maintain their superior self-image
Blame-shifting is another common strategy employed by narcissists when faced with criticism. Rather than accepting responsibility for their mistakes or shortcomings, they may assign fault to others, making them the scapegoat for any negative outcomes. By redirecting the blame, narcissists can maintain their sense of infallibility and avoid the discomfort of admitting their own flaws.
Yet another https://en.wikipedia.org/wiki/Tu_quoque