It is challenging to have a relationship with a person that has borderline personality disorder (BPD), especially since one of the hallmarks of the disorder is unstable relationships.
One way to help control their extreme behavior is to learn your own boundaries.
A person who has a personality disorder will have difficulty dealing with other people in the workplace, school, or social gatherings, and this may result in varying degrees of mental and emotional distress.
Some of the signs that may indicate that a person has personality disorders are social isolation, mood swings, difficulty in controlling impulse, stormy relationships, outbursts of frustration and anger, and inability to trust other people.
While a relationship with someone who has BPD may seem nearly impossible at times, there are ways you can facilitate the relationship with that person without having to go on the rollercoaster ride with them as they oscillate between extremes in behavior and mood.
Having a relationship with a loved one with BPD means that you will have to find a way to manage your behaviors so you can manage their behaviors.