This post explores the emotional patterns of people with BPD through the mentalisation model, which provides insights into how they process thoughts, emotions, and relationships.

What is Borderline Personality Disorder (BPD)?

BPD is a mental health disorder characterised by emotional dysregulation, unstable relationships, and a fragile sense of self. People with BPD often struggle to manage their emotions and may experience intense fears of abandonment, leading to behaviours that can seem erratic or confusing to loved ones.

At the core of BPD is a difficulty with mentalising—the ability to reflect on one’s own thoughts and emotions while also considering the thoughts and feelings of others. When someone with BPD is emotionally distressed, their capacity to mentalise can collapse, making it harder to navigate relationships calmly and thoughtfully.

It is also crucial to mention that the term Borderline Personality Disorder is actually synonymous with Emotionally Unstable Personality Disorder. The terms are used interchangeably and describe the same set of symptoms.

Emotional Turbulence and Hyper-Sensitivity

One hallmark of BPD, or EUPD is emotional dysregulation, where emotions can shift quickly from one extreme to another. In relationships, this may look like a loved one feeling deeply connected one moment and then suddenly hurt, angry, or distant the next. Hence, the renaming of BPD to Emotionally Unstable PD as this more accurately reflects what is going on.

People with BPD are also hyper-sensitive to social cues, such as tone of voice or body language. For example, they might notice you crossing your arms and assume you are upset, even if that wasn’t your intention. This sensitivity can lead to misunderstandings and conflicts, as they often make inaccurate assumptions about what others are thinking or feeling.

What you might hear:

• “Your tone sounds like you’re annoyed with me.”
• “If you really cared, you’d tell me right away.”

This intense focus on others’ behaviours stems from a deep fear of rejection or abandonment.

Impulsivity and Conflict

People with BPD often act on impulse, especially during emotional distress. This can result in quick decisions or harsh reactions without pausing to reflect on the consequences.

For example:

• They might lash out during an argument.
• They may assume you don’t care because you took time to reply to a message.

These behaviours can be exhausting for loved ones, especially when they feel like they’re constantly walking on eggshells.

The mentalisation model explains that this impulsivity is tied to an over-reliance on automatic emotional reactions rather than reflective thinking. The person with BPD may not pause to consider other perspectives, it is challenging for them to genuinely appreciate other’s perspectives, making it difficult for them to reflect on how their actions affect others. Perhaps you have been confused by someone’s demands/preferences for your sexual relationship and little awareness is shown of what it means to the other person. These impulsive behaviours can leave their loved ones feeling hurt or confused. It can also be exhausting for the person trying desperately to remain consistent and stable in the face of such instability.

The Push-Pull Dynamic in Relationships

One of the most challenging aspects of being in a relationship with someone with BPD is the push-pull dynamic. They may crave closeness but then pull away suddenly when the relationship feels too overwhelming.

This happens because the other person’s emotions can feel psychologically invasive. When someone with BPD feels too influenced by their partner’s emotional state, they may fear losing their identity. To protect themselves, they may withdraw or create emotional distance.

What you might experience:

• They might express intense affection, only to suddenly become distant or critical.
• They may propose long-term commitments and later seem to dismiss those plans entirely.

This dynamic can be emotionally draining for both partners.

How to Respond with Compassion and Boundaries

Understanding that BPD behaviours are rooted in emotional pain and vulnerability can help you respond with more empathy. However, it’s also essential to set boundaries to protect your own well-being.

Here are some practical tips for navigating relationships with someone with BPD/EUPD:

1. Stay Calm and Reflective
   When emotions run high, try to remain calm and reflective. Avoid escalating conflicts by matching their intensity. Instead, pause and encourage a thoughtful conversation.
2. Avoid Taking Things Personally
   Many of the reactions you may experience from your loved one stem from their internal struggles, not from something you’ve done. Remind yourself that their behaviours are a reflection of their pain, not a judgement of you.
3. Encourage Mentalising
   Help your loved one slow down and reflect on their thoughts and feelings before acting. Ask open-ended questions like:

• “What do you think is happening right now?”
• “How are you feeling about that?”

These questions can encourage them to process their emotions more thoughtfully.

4. Set Boundaries with Compassion
It’s important to set limits to protect your emotional well-being. For example, you can set boundaries around how you communicate during conflicts or how you manage emotional outbursts. Do so with compassion, making it clear that your boundaries are about protecting the relationship, not rejecting the person.

Why Relationships Can Be So Painful for People with BPD

People with BPD experience profound emotional pain. One of the most distressing feelings is emptiness, a sense of having no stable identity or sense of self. To cope with this emptiness, they may seek validation from others. A series of unfulfilling short-term relationships may be a way of trying to get the validation required and to combat the empty feeling as a way of feeling something real or enlivening. Even engaging in ‘the chase’ may be indicative of the need for the temporary relief from the overwhelming emotional void. The mentalising capacity is also often compromised and the responses of others are not interpreted accurately. This leads to misunderstandings and conflicts, especially in close relationships where the stakes feel highest.

Recognising Patterns from Your Own Life

It’s also important to reflect on your own relationship patterns. If you grew up with a parent or caregiver who had BPD traits, you may find yourself drawn to relationships with similar dynamics. Understanding your own emotional responses and attachment patterns can be key to building healthier relationships.

Conclusion

Being in a relationship with someone who has BPD is challenging, but understanding the mentalisation model can provide insight into their behaviours. While empathy is important, so is setting healthy boundaries and ensuring your own emotional needs are met.

Seeking therapy—for both you and your loved one—can make a significant difference in navigating these relationships with more compassion and stability.

If you recognise any of the above traits in yourself or in your relationship get in touch to find out about how Transactional Analysis Psychotherapy informed by Mentalisation-Based Therapy can support you to move forward in a fulfilling, compassionate and happier way.

The post In a Relationship with Someone with BPD? appeared first on Southdowns Psychotherapy.

The brain.

How often do you consider the impact your brain can have on your relationships?

Understanding the importance of our own brains may not be the first thing that comes to mind when asked about our relationships. But, the brain is the place where we process how we perceive, evaluate, understand, communicate and interact with other people. The brain is inextricably linked with behaviour and mental processes.

There are three specific brain structures that have the ability to affect our sense of well-being and can impact our relationships.

Without going into hugely complicated brain anatomy (!) the following areas are fundamental to helping us understand how this works.

Brain Structures and Emotions

Pre-Frontal Cortex

Where we begin. This is the most important brain structure.

If you can imagine looking down on a brain from above, the upper part is the cortex. The front half of this structure is the cortex. The front half of this half is then the pre-frontal cortex. If we’re on top form, this is where we will be working from. If the lights are on up there, we will be our best selves. We will be present and grounded, adaptive to others, responsive to other people’s needs, we are being “adults”. When the neurons are firing up in this section, we are on form!

Hippocampus

If we go lower into the brain, we find the limbic system, this is the place where we regulate emotions and assess potential threats. There may be emotional communication going on, but it’s not happening right at the top of our brains, at a higher level. The hippocampus and amygdala are two important structures within the limbic system.

The hippocampus modulates memory and processes sets of stimuli. It’s where we hold our autobiographical memory and from where can tell stories about ourselves. Our hippocampus is the part that will process aspects of emotional memories. Our memories are then what help us to respond to the world around us and inform what our emotional responses may be.

Amygdala

The amygdala is an almond-shaped structure lower down in the brain essential for decoding emotions. It is a more primitive part of our brain and modulates emotions directly linked to our survival such as threats or food. It is essentially the guard dog or internal alarm part of our brain.

This part is particularly important in responding to threats and many of our internal alarm circuits are found in the amygdala. As a result, it can detect threats from various sensory sources.

The amygdala also exaggerates threat on purpose. This is ideal when there is an actual threat as it helps us mobilise ourselves to keep ourselves safe. When we are activated in our amygdala it shoots out epinephrine, cortisol and adrenaline to get us active to save ourselves.

But, when there is so much focus down here, our pre-frontal cortex is essentially relegated and goes offline. Our brain is flooded and drowns out the pre-frontal cortex because in terms of biology, it’s not so important a structure in our threat response system. The amygdala and our internal threat system are going to be the brain structures keeping us out of danger. Our sophisticated pre-frontal cortex is great for rationale and higher level thinking but isn’t so necessary in keeping us safe. When our priority is reacting to an immediate threat, we don’t have time to weigh up the pros and cons of the options available to us, we just need to move quick! Thinking more or less goes out the window when what we need is to be ready for combat or to run as fast as we can.

So how do these structures come together to have an impact on relationships?

Our memories fuel our emotions

If we are in a car crash for example, the hippocampus will recall who we were with, what we were doing at the time etc. Because of the connections with the amygdala, we may then get sweaty palms and a racing heart beat too as our amygdala kicks in. If at a later date we are in the car with the same friend and a similar trigger situation occurs, we may find ourselves reacting in a very similar way even though this time we may not be at risk of an impending crash. Our system has been conditioned somewhat to this potential danger and we’re sent off on an emotional rollercoaster again as our hippocampus has been activated.

The hippocampus is important in building a theory about what works in relationships. If we recall a negative emotion we are likely to be taken to a negative mental space. If we recall happy memories we may be in a good mood. Positive memory recall entails the release of dopamine and in this way memory recall fuels our emotions.

The impact on relationships

It makes sense that if we have been in a destructive or abusive relationship, we are on heightened alert to similar situations. If we are used to operating at a level of increased self-preservation or increased anxiety, we may be at a constant level of a low grade threat response. Our reactions and emotions will therefore be informed by our previous experiences. We may find similar situations invoke a similar threat response with our pre-frontal cortex going offline even though the situation is different.

If we are at home awaiting the return of our partner and the door slams shut, if our threat system is activated we may respond in a jumpy way. Our limbic system will be activated and we may be responding to what we perceive to be a potential danger. We may snap at our partner and react angrily as our amygdala has flooded us with stress hormones. I might attribute my threat response to what is going on in front of me instead of understanding it in a more rational way. Perhaps my partner has let the door blown shut and I find myself reacting in response to what I perceive to be a major threat because I am remembering alarm bells from back in the days.

It’s Complex

This is just a simplistic look at how the brain impacts on our relationships. The connection between the brain and relationships are so closely intertwined that relationships can also actually have an impact on our brain. Our relationships have the power to also alter the structure and neural pathways in our brains.

Moving Forward

If you are interested in how you came to be the way you are, why you make decisions that you do and why you avoid making other choices in life, get in touch. Transactional Analysis therapy is an amazing way to aid understanding of ourselves, our personalities and our relationships.

The post Understanding How Our Brain Impacts On Our Relationships appeared first on Southdowns Psychotherapy.