u/Zer0Infinite

Help a brother i need with your advice and experiences.
I’m reaching out to get some perspective from people who have been through similar patterns.
My wife has been diagnosed with Borderline Personality Disorder (BPD). She is currently on SSRI & mood stabilizers, but her therapy engagement has been on-and-off. Over the past year, I’ve been caught in a relentless cycle of instability, severe mood swings, substance use (cannabis/gummies), and repeated emotional dysregulation.
The core issue that is destroying us is trust and secretiveness. Despite establishing clear boundaries, I keep uncovering a pattern of ongoing, concealed communication with ex-partners, deleting call logs, changing stories about her whereabouts, and minimizing what’s happening when confronted. When I try to address these issues, it quickly spirals into deflection, emotional breakdowns, or extreme guilt-tripping or promising change but happens again (This is the 3rd time this has happened).
I’m exhausted from playing the role of an investigator instead of a husband. I still care about her and want to know if genuine accountability is even possible in this scenario, but I’m running out of options.
To make matters more complicated, walking away isn't straightforward—there are significant personal and family assets involved that make a swift divorce extremely high-stakes and complex.
For those who have dealt with a BPD partner exhibiting chronic boundary violations and secrecy:

1. Did therapy (like DBT) ever lead to actual accountability regarding lies/infidelity, or is the concealment an ingrained defense mechanism?
2. How did you protect yourself financially and legally while deciding?
3. If you chose to stay, what non-negotiable boundaries or legal safeguards (like post-nuptial agreements) did you put in place?
   Appreciate any practical insights or grounded advice

I’ve been reading through this subreddit for a while, and one thing I’m struggling to understand is why the advice so often seems to be that the relationship should end.

From what I’ve read about BPD, treatments like DBT and other forms of therapy can help people manage symptoms, improve emotional regulation, and build healthier relationships over time.

So my question is: why do so many people here believe that leaving is the best or only option?

Is it because treatment rarely works in your experience? Is it because many people with BPD don’t stay in treatment long enough for it to help? Or is it because even with treatment, the damage done to the relationship is often too great to repair?

I’m not asking this to argue with anyone. I’m genuinely trying to understand the perspective of people who have been in long-term relationships with partners who have BPD, especially those who have seen their partner receive treatment.

Have any of you experienced a relationship that became stable and healthy after sustained treatment and DBT, or do you believe that the challenges usually remain despite treatment?

I was recently diagnosed with BPD after struggling for years with emotional instability, anxiety, anger, relationship issues, fear of abandonment, emotional overwhelm, and very intense reactions to stress and conflict.
I also have a significant trauma history from childhood including emotional invalidation, abuse, neglect, comparison, and feeling emotionally unsafe growing up. I think a lot of that has affected the way I see relationships, criticism, expectations, and emotional closeness now.
Sometimes I become emotionally overwhelmed very quickly, overthink interactions, feel deeply hurt or triggered by things others may see as small, and then later regret my reactions or behavior. I also struggle with anxiety, depressive thoughts, emotional dependency mixed with avoidance, and difficulty regulating my emotions consistently.

I recently started treatment (therapy + medications), but not DBT yet.
I wanted to ask people here who have BPD and improved over time:

Did therapy or DBT genuinely help you regulate emotions better?
Did the constant emotional pain, anxiety, anger, and triggers reduce over time?
Did your relationships become more stable?
Did you stop overreacting emotionally to situations?
Did your fear of abandonment or emotional overwhelm improve?
Did depressive thoughts and hopelessness reduce?
Were you eventually able to live a relatively normal and emotionally stable life?
What changed internally for you after treatment?

I think right now I feel scared that I may always remain emotionally unstable or damaged, so I would really appreciate hearing real experiences from people who improved and found emotional balance over time. By the way I am married and the relationship with my husband is suffering from this instability. I’m scared.

My wife was recently diagnosed with BPD and I’m honestly struggling to understand how much of what’s happening is the disorder itself vs behavioral choices/personality patterns that she still has responsibility over.
I’m posting here because I want honest input from people who have lived through similar dynamics or understand BPD deeply. I’m emotionally exhausted and trying to understand whether this relationship realistically has a chance to become stable and healthy.

My wife has a significant trauma history:
emotional invalidation,
physical/emotional abuse,
strict parenting,
comparison and neglect,
bullying/social isolation,
abandonment wounds,
and a long history of emotional instability.

She also had a very deep long-term relationship before marriage and has openly admitted she “married me but loved someone else.” During periods of marital distress she tried reconnecting emotionally with her ex and discussed separation/divorce ideas, though later she told her therapist that she does feel emotionally connected to me.
She is currently on SSRIs and lithium carbonate (temporary after suicidal ideation was expressed to the psychiatrist) and has started therapy, though not DBT yet.

The relationship patterns I’ve experienced include:

emotional outbursts and escalation during conflict,
dramatic exits/running away during arguments,
relationship sabotage,
intense push-pull behavior,
threats to leave or end the marriage,
blocking/unblocking,
lying and deception when stressed,
hiding substance use,
triangulating conflicts with family/friends,
emotional withdrawal and avoidance,
unstable routines/functioning,
and interpreting ordinary family expectations as control or oppression.

One of the biggest recurring issues is that she often feels that basic family participation means she is being treated like a “maid” or emotionally burdened, even when expectations are relatively basic:
waking up at a reasonable time,
joining breakfast,
spending time with the family,
participating somewhat consistently in household life,
and functioning like a present adult partner.
Instead, there are long periods of:
sleeping excessively,
avoiding interaction,
isolating in the room,
inconsistency,
emotional disengagement,
and then later acting as though the environment itself is entirely the problem.

At the same time, her functioning appears much better at her parents’ house or in environments where there are fewer emotional expectations attached.

Another painful moment recently:
I came home injured after a scooter accident and her response felt emotionally dismissive/joking rather than concerned or empathic. The fight escalated badly afterward and she left the house dramatically during the argument.

Despite all this, there are also moments where she:
appears emotionally attached,
wants reassurance/pampering,
fears abandonment,
becomes affectionate again after conflict,
and says she does love me emotionally.
This is what confuses me the most.

So my honest questions are:
How much of behavior like this is genuinely driven by BPD/emotional dysregulation vs conscious behavior patterns the person still has responsibility for?
Can people with BPD genuinely love someone while simultaneously sabotaging the relationship repeatedly?
Does this kind of instability actually improve long term with therapy/DBT/accountability?
At what point does understanding trauma/BPD stop helping and start turning into enabling harmful behavior?

For those who stayed in relationships like this:
did things ever become emotionally stable?
or does the cycle usually continue indefinitely unless the person becomes deeply committed to treatment and accountability?
Is it common for people with BPD to interpret ordinary expectations/responsibilities as emotional control, criticism, or oppression?

I’m trying very hard to stay compassionate and understand the trauma behind these behaviors, but I’d be lying if I said the relationship hasn’t become emotionally draining, confusing, and destabilizing for me too.
I’m genuinely looking for realistic perspectives — not just hope or doom — especially from people who have seen either meaningful recovery or repeated failure patterns in relationships involving BPD.