Marty is moody, manipulative, unstable, lacks a clear sense of identity, and often clings to others. He wants to have close relationships but is unable to do so because he is untrusting of others. Marty is suffering from personality disorder. antisocial avoidant dependent borderline paranoid

Borderline

Explanation:

Borderline personality disorder is a mental health disorder that impacts the way you think and feel about yourself and others, causing problems functioning in everyday life. It includes self-image issues, difficulty managing emotions and behavior, and a pattern of unstable relationships

Marty is suffering from borderline personality disorder

Explanation:

it's false.

"every person has their limitations which prevent us from accomplishing something. some are better than mathematics for example and some are worse. those people who are worse might never be able to become mathematicians, but that does not mean that they would not be great at doing something else."