May is Borderline Personality Disorder Awareness Month, and there is one thing I wish more people understood about BPD: its reputation is decades out of date.
Borderline personality disorder is still sometimes discussed, even within the mental health professions, as though it were a life sentence. It has been treated as a diagnosis clinicians dread, patients should conceal, and families should fear. The contemporary literature tells a very different story. With specialized treatment, most people with BPD improve substantially, and long-term studies show high rates of remission (Leichsenring et al., 2023).
Statistics matter, but they rarely persuade someone who is suffering. Understanding often does. To understand why treatment works, it helps to begin with what BPD can feel like from the inside.
A World Without a Middle
Beneath the stigma, BPD describes a recognizable and deeply human predicament.
Emotions arrive quickly, feel overwhelming, and may take a long time to subside. Relationships can shift abruptly between closeness and despair. A person may feel certain of who they are in one moment and hollow, ashamed, or unrecognizable to themselves in the next. The possibility of abandonment can feel so threatening that it alters how even ambiguous interactions are perceived.
Psychoanalytic thinkers have understood this as a particular organization of the internal world, one in which experience remains divided.
Kernberg (1984) described the central role of splitting: the people one loves may be experienced as either entirely good or entirely bad, rescuer or persecutor, with little room for contradiction. A therapist who feels deeply caring on Tuesday may feel cold, rejecting, or dangerous on Thursday. In each moment, the experience feels complete and convincing.
Because we also come to know ourselves through relationships, the self may divide along the same fault line. A person may feel valued, lovable, and secure in one state, then worthless or irreparably damaged in another.
From the outside, this may look inconsistent. From the inside, it is often experienced as a succession of emotional realities, each temporarily erasing the one that came before.
This perspective also helps us reconsider the “manipulativeness” so often attributed to people with BPD.
Manipulation implies detached calculation. What is usually happening is closer to drowning. The person is overwhelmed by emotional pain and reaching for whatever has previously brought relief, restored connection, or delayed a feared abandonment.
What appears controlling may be an urgent form of communication:
Something unbearable is happening inside me, and I do not yet know how to put it into words.
Where the Middle Went
This divided internal world has a developmental story, but it is important to tell that story without reducing BPD to parental blame.
Imagine a temperamentally sensitive infant whose emotions are intense, rapid, and difficult to soothe. A child gradually learns what feelings are through repeated interactions with caregivers. Emotional states are received by another mind, recognized, survived, made sense of, and returned in a form the child can tolerate.
Over time, fear becomes something that can be named. Anger becomes understandable. Distress becomes survivable.
When this process fails often enough, whether through trauma, misattunement, instability, caregiver distress, temperamental mismatch, or circumstances involving no deliberate harm at all, emotional states may remain difficult to recognize and organize. They are experienced less as feelings that can be thought about and more as raw psychological weather.
The capacity that develops through being understood is what Fonagy and Bateman (2008) call mentalizing: the ability to understand behavior in terms of thoughts, feelings, wishes, beliefs, fears, and intentions.
Mentalizing allows us to ask:
What am I feeling?
Why did I react so strongly?
What might the other person have meant?
Could there be another explanation?
For people with BPD, this capacity may function well when relationships feel safe, then collapse under conditions of rejection, shame, fear, anger, or attachment threat. Unfortunately, these are precisely the moments when mentalizing is needed most.
When mentalizing goes offline, uncertainty becomes difficult to tolerate. Feelings become facts. The middle ground disappears, and the divided world returns.
A delayed text message no longer feels ambiguous. It becomes proof of rejection.
A disappointed facial expression becomes evidence of contempt.
A boundary becomes abandonment.
The person is not choosing to distort reality. Their ability to reflect has been temporarily overtaken by the intensity of the emotional state.
Two Treatments Built on Understanding
The two approaches I practice, Mentalization-Based Treatment and Transference-Focused Psychotherapy, were developed from this understanding of BPD. Both are supported by randomized controlled trials (Bateman & Fonagy, 2009; Doering et al., 2010).
Mentalization-Based Treatment
Mentalization-Based Treatment, or MBT, works at the point where reflective capacity begins to collapse.
If mentalizing breaks down during emotionally charged and attachment-laden interactions, then treatment must help restore it in those moments. Therapist and patient slow the interaction down and become curious about what is occurring.
What just happened between us?
What did you imagine I was thinking when I said that?
What were you feeling immediately before you became angry?
What else might have been true?
The therapist does not present themselves as an all-knowing expert on the patient’s mind. Instead, therapist and patient investigate experience together.
This is not merely an intellectual exercise. It is a relational process through which emotions gradually become experiences that can be understood rather than emergencies that must be escaped, discharged, or acted upon.
One mind helps hold another until the person can increasingly hold their own mind in view.
Transference-Focused Psychotherapy
Transference-Focused Psychotherapy, or TFP, works directly with the divided internal world.
The intense and shifting ways a person with BPD experiences others will inevitably appear in therapy. At different moments, the therapist may be experienced as caring or cruel, rescuing or abandoning, idealized or devalued.
TFP does not treat these shifts as distractions from the therapy. They are the therapy.
The relationship becomes a place where these different emotional realities can be observed, named, and examined as they unfold. The therapist helps the patient recognize that the all-good and all-bad versions of another person may belong to the same complex human being.
Over time, these divided representations can begin to integrate.
A therapist can disappoint without becoming entirely rejecting.
A partner can be loved while also being frustrating.
The self can contain goodness and aggression, competence and vulnerability, love and anger, without collapsing into worthlessness.
What gradually emerges is the middle register that was previously missing: a more continuous sense of self and a more stable experience of other people, even during conflict or disappointment.
What My Research Found
My doctoral dissertation was a systematic review and network meta-analysis comparing Dialectical Behavior Therapy, Mentalization-Based Treatment, and Transference-Focused Psychotherapy across randomized clinical trials involving approximately 1,600 patients (Simon, 2025).
Two findings are particularly relevant.
First, specialized treatments for BPD should not be treated as though they are interchangeable. A therapy designed primarily to reduce self-harm and improve behavioral regulation may not affect the same domains in the same way as a treatment focused on mentalizing, attachment, or the integration of personality.
The data reflected these differences.
Second, MBT and TFP performed particularly well in the areas described throughout this article. MBT ranked highly across several outcomes, including self-harm and suicidality, while both MBT and TFP demonstrated substantial effects on interpersonal difficulties, one of the areas in which BPD often causes the greatest suffering.
Such rankings should always be interpreted cautiously. Network meta-analysis describes the available evidence; it does not permanently settle which treatment is best for every person.
The broader conclusion, however, is clear: psychoanalytically informed treatment for BPD is not based on faith, tradition, or theory alone. It is a clinically and empirically supported approach.
Honest Hope
I do not want to romanticize the treatment.
This work is often measured in years rather than months because what is changing is not merely a set of symptoms. Treatment involves reorganizing ways of experiencing the self, relationships, emotion, and threat that developed over a lifetime.
But improvement does not wait until therapy is complete.
During the first year, many people begin to notice that emotional storms pass more quickly. Conflicts become less catastrophic. Relationships become more durable. Impulses become more understandable. A feeling can be experienced without immediately becoming an action.
Gradually, something steadier may emerge beneath the weather: a sense of being a continuous person who can feel intensely without being entirely swept away.
If you have BPD, love someone who does, or wonder whether the diagnosis may fit your experience, the message of Borderline Personality Disorder Awareness Month is simple:
BPD is understandable.
BPD is treatable.
And you are not too much.
You can read more about my approach to BPD treatment or schedule a consultation.
References
Bateman, A., & Fonagy, P. (2009). Randomized controlled trial of outpatient mentalization-based treatment versus structured clinical management for borderline personality disorder. American Journal of Psychiatry, 166(12), 1355–1364.
Doering, S., Hörz, S., Rentrop, M., Fischer-Kern, M., Schuster, P., Benecke, C., Buchheim, A., Martius, P., & Buchheim, P. (2010). Transference-focused psychotherapy v. treatment by community psychotherapists for borderline personality disorder: Randomised controlled trial. British Journal of Psychiatry, 196(5), 389–395.
Fonagy, P., & Bateman, A. (2008). The development of borderline personality disorder: A mentalizing model. Journal of Personality Disorders, 22(1), 4–21.
Kernberg, O. F. (1984). Severe personality disorders: Psychotherapeutic strategies. Yale University Press.
Leichsenring, F., Heim, N., Leweke, F., Spitzer, C., Steinert, C., & Kernberg, O. F. (2023). Borderline personality disorder: A review. JAMA, 329(8), 670–679.
Simon, C. J. (2025). Efficacy of treatment modalities for borderline personality disorder: A systematic review and network meta-analysis of DBT, TFP, and MBT [Doctoral dissertation, Pacifica Graduate Institute]. ProQuest Dissertations and Theses Global.