What psychological disorder did Brad Pitt have in 12 monkeys?

In the film "12 Monkeys," Brad Pitt's character, Jeffrey Goines, exhibits symptoms consistent with a personality disorder, specifically traits associated with borderline personality disorder. His erratic behavior, impulsivity, and intense emotional responses highlight the instability often seen in such disorders. Additionally, he displays elements of delusion and paranoia, particularly in his beliefs about the organization behind the virus outbreak.