Answer: Narcissistic personality disorder
Explanation:
Narcissistic personality disorder is a mental condition in which individuals  have an heightened sense of their own importance and great need for excessive attention and admiration, showing lack of empathy for others.
Darlene who  is very self-focused and brags about herself to anyone who will listen and manipulates every conversation back to herself shows a great display of grandiosity, an exaggerated sense of self-importance which is a Narcissistic personality disorder.
