According to the National Institute of Mental Health, Borderline Personality Disorder is "an illness marked by an ongoing pattern of varying moods, self-image, and behavior. These symptoms often result in impulsive actions and problems in relationships.
People with borderline personality disorder may experience intense episodes of anger, depression, and anxiety that can last from a few hours to days."
Some of the most common traits include:
Fear of abandonment.
Unstable relationships. Things can be really good or turn really bad suddenly in a dramatic manner.