Dennis admired his boss greatly at first. they had an intense and productive working relationship, which then turned volatile when his boss informed him that the company was reducing the number of fulltime employees. though his work record was very positive, dennis began exhibiting impulsive, self-destructive behaviors at work, and was asked to leave. he found another job, but the same pattern caused him to lose that position after he was passed over for a promotion. what personality disorder best fits dennis’s behavioral patterns?