BPD splitting destroys relationships because the behaviour can be impulsive or reckless in order to alleviate the pain, often hurting loved ones in the process. It can feel like everyone abandons or hurts them, often causing them to look for evidence, and creating problems from nothing.

Why do people with BPD leave relationships?

Instability. People with BPD are often terrified that others will leave them. However, they can also shift suddenly to feeling smothered and fearful of intimacy, which leads them to withdraw from relationships.

Do borderlines regret breaking up?

People with BPD may be sensitive to rejection and abandonment and are prone to splitting, rage, and impulsivity. If a person with BPD feels rejected or abandoned, they may end the relationship. However, this is usually followed by significant anxiety and regret and efforts to get back together.