Mood swings are common. These individuals can be argumentative at one moment and depressed at the next and then complain of having no feeling at all, at another time. The behavior of a BPD individuals is highly unpredicatable which makes it difficult for these individual's to achieve up to their potential in life. Borderlines often feel both dependent and hostile which in most cases makes for tumultuous interpersonal relationships. They can be very dependent on those to whom they are close and they can express enormous anger at those close, around them in times of frustration.
Borderlines have a very low frustration tolerance level as well.
Most Borderlines have a very difficult time being alone. Most frantically will do almost anything to avoid being alone. Borderlines do not have a stable sense of identity and often inspite of many overwhelming affects mention most often, depression. This is known as splitting. The good person is idealized and the bad person is devalued, there is no in between.