Unlike bipolar disorder, their moods shift quickly and aren’t a departure from their normal self. Their emotions, behavior, and unstable relationships, including work history, reflect a fragile, shame-based self-image.
This is often marked by sudden shifts, sometimes to the extent that they feel nonexistent. Thus, they’re dependent on others and may frequently seek advice from several people about the same question on the same day.
An unstable sense of self is characteristic of the disorder, along with impulsiveness and demanding behavior.
Substance abuse and promiscuity are also common, and may be connected.
Those suffering with borderline personality disorder (BPD) have a proclivity for unstable interpersonal relationships.