Did your partner ever "flip" and act different?

[littlesolaris]

Hi there. I'm new and would really appreciate some help.

Some background context: I've been with my BPD partner for 1,5 years.

Early on (February 2025) in our relationship, I found out he cheated on me with escorts, because he gave me a (thankfully curable) STI. I was set to leave, but he took responsibility, was committed to making everything right, and I recognized that his acting out was because of addiction (alcohol - drugs - sex).

Since February 2025 he has been sober. Since June we started couple's therapy. Since August he started supporting me financially, started seeing a sex therapist (that I found), started the 12 step program (that I insisted on), and began doing the work to understand his addiction better. It was not all easy for me, because although he began work on himself, he still could not manage with my emotions after the betrayal. He would try his best to be there for me, but almost always spiraled into shame. Then into self-harm. It was so exhausting and so scary, because he reminded me of the violent father I had growing up. I felt like I had to fight for him to sit with my feelings, it's like my betrayal trauma became secondary to the insane amount of emotions he was feeling about himself.

After months of this cycle, it became worse and worse - I would result to verbal abuse (which I have never done in my life), and he would further spiral, self harm, and contemplate suicide. It got so regular and so bad, that his therapist, our therapist, and even my therapist said he needed rehab. He bumped up his health insurance, but always found an excuse why he can't do it now.

The past month: During one of couple's therapy sessions, our therapist, after hearing how I've witnessed yet another of my partner's self-harm collapses, said: "Where are your boundaries? You have to call the police next time this happens". So I did. And that is also the moment, where everything flipped.

He got admitted for half a day, got evaluated, his sister, who knew of what was happening between us (I encouraged him to tell her early on) and whom he often called during our "cycles" to save him, was also there. The atmosphere was tense.It became clear, that something needs to change. That day, he did not come home and decided to stay at his sister's. The next day, he decided to stay at his parent's. He suggested we don't talk a lot. I actually thought that was a good idea, that it was very-very healthy, and that we both needed a break. However, several days later during our couple's therapy session, it became clear what as happening.

He came into the session with a recording (we have a web-cam running non-stop for our dog + security) of the fight we had, the one where I would call the police, and said: "The reason I was admitted in the hospital and the reason I was/am self-harming is because littlesolaris is an abuser". I 100% acknowledged that what he said was valid, I did say A LOT of nasty things to him during this fight and the ones before, I apologized, and I committed to working on my trauma, and to heal this wounded part of me. However, the timeline of that accusation is just bluntly wrong! I felt like I was living through a second betrayal. My partner who was so devoted to me and devoted to making it all work, reframed me as the villain and cut back on a lot of commitments he made prior, citing they were "made under duress".

For the first several months of his dysregulation (following February 2025), he would self-harm (or throw things around, punch walls, break things) independently of my voice/tone/or even the things that I said. I would even often times soothe him and reassure him, while shoving my desire to get clarity about the affairs he had. This continued for MONTHS. My understanding is that at some point my nervous system had enough and had to discharge all the pain I was carrying. This does not excuse my actions, though it does help maintain a sense of reality of what came first, and I absolutely knew, that I did not enter the relationship being abusive.

What is happening now: He's been living with his folks for the past 3 weeks. We've been mostly minimal contact. As part of our agreement post betrayal (as agreed in therapy), he was supposed to keep his devices accessible to me, though he decided to wipe them remotely without telling me, he justified it as "I need to be able to talk freely with my support people". Mind, I NEVER went into his private messages, though having the devices available provided reassurance. On another example, when we do talk about logistics or things that require collaboration, he lashes out. He thinks I am here to fight him. I called him A week ago after a miscommunication happened and he started the call with: "Let's go, let's do this!", like he was preparing to have some sort of battle with me? 4 days ago, when he dropped off our dog, he had a mental breakdown when I asked him to send me the therapeutic separation document we started working on. He said his therapist told him not to do that, so he won't. This was a last-minute change from what we agreed upon and it sabotaged my own therapy session during that day. That was a wake up call for me.

The next day (March the 18th, 2026) we had a couple's therapy session, during which we were supposed to go through the therapeutic separation document (the one I was meant to discuss with my therapist prior). I ended up reading a letter I wrote after having a call with my therapist, who was alarmed that his state began influencing my needs and my own recovery, and who advised me to stop couples therapy, until there is more structure from his side, including him going into rehab. I said that the episodes during the past several days greatly destabilized me, and proved to me, that collaboration at this point is impossible. Therefore, I am making the decision to stop working on the relationship, I'm pausing the situation completely, and I am taking one week of no contact to regulate, because I've noticed the time apart actually helped me soothe my nervous system, whereas for him, it seemed to have done the opposite. He accepted my conditions, but he was very angry throughout the call. "This was a very revealing call", he said.

My question: does anyone else have experience with a partner flipping like this? I am constantly doubting my reality. I feel like I am going insane and I cannot recognize the person I was with for the past year. The only reason I decided to give this relationship a go, and continue being with him, was because he was remorseful and trying his best to do the right things for him and for me. And now everything has flipped. He's the victim, I'm the villain. He even mentioned that I should go to rehab! And went as far as calling me an addict! Massive projection happening.

I'm wanting to extend the no contact as long as possible, and I intend to do my absolute best, although it's insanely hard because despite all this I miss him greatly, to honor my boundary of not continuing the relationship before I have a rehab starting date, or him actually being there. We live together, we have a dog, and finding a new apartment is going to be both incredibly inconvenient, as well as not cheap.

If anybody can offer me any advice or input, I would be very grateful. I feel so very lost.

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[Mutt]

Hi littlesolaris,



Welcome to BPDFamily. I’m really glad you found your way here, and at the same time, I’m sorry for the circumstances that brought you.

I can really relate to the confusion and destabilization you’re describing. When things keep getting reframed or distorted over and over, it can start to make you doubt your own reality, like you’re losing your footing a bit. That’s a really unsettling place to be.

It also sounds like you’re taking responsibility for how you’ve reacted, and that matters. At the same time, each person is responsible for how they respond to things. Someone else’s behavior can be overwhelming or triggering, but it doesn’t make us act a certain way. So his reactions and behaviors are his to own, just like yours are yours.

You mentioned you’ve been apart for a few weeks now, and that some of that space has helped you regulate. I’m wondering what you’re starting to notice in yourself with that distance. Sometimes when things are really intense, it’s hard to see clearly until there’s a bit of space from it.

[mssalty]

My understanding is that it’s very tough for a person with BPD to accept responsibility for their actions because of the high level of shame they feel.  The more pressure to take responsibility in my experience, the more they’re likely to lash out at you, change the subject (often to something you’ve done wrong in their eyes, no matter how long ago), or when all else fails, switch to guilt.   

Shades of gray are tough for them.  You are the hero or the villain. 

At times, my partner has done a scary thing where it’s like an acting exercise, snapping from tears, to screaming, to bloodchilling calm anger, and then answering a phone call like nothing was going on seconds before.   So flipping and acting different is definitely something I’ve seen.

[Pook075]

Hello and welcome to the family.  I'm also really glad that you found us and so many here have had similar experiences.  I can't imagine how you're feeling after the whirlwind of the past few weeks.

What it sounds like you're describing is a term called "splitting", where someone with BPD sees things in absolutes while they're unstable.  If you've had arguments where he's said, "You've never stuck up for me" or "You're always blaming me for <bla bla bla>", that's a great example of splitting where they see things in black and white, or good and bad.  This happens at the start of the relationship (everything about you is perfect/good) and in these moments where they're at their worst (you're a bad person out to hurt them).

BPDs almost always have a favorite person (all good, of course) and they can do no wrong.  Then there are many people they cast out of their lives because they're labeled "bad people".  And these titles can flip-flop often during instability.

I think when you called the police, his good/bad switch was flipped and you suddenly became the enemy.  Again, that's not a permanent thing though, and sometimes splitting lasts for minutes or hours.  Being in that mindset is what's sending him on his current path of questioning everything and wondering if it's worth it to return to the relationship.

That also jives with him lashing out and blaming you for his own behavior recently.  Again, black and white thinking...with no grey areas (which is where we actually are, none of us are all good or all bad).

What's this mean for you?  That's a much easier answer.  Take this time to regroup and recharge, while focusing on your own mental health without the outside noise.  See where it leads and allow yourself to be honest with what you really need for things to work in the relationship.  In short, it's time to heal and let go of all that past hurt.

[CC43]

Hi Solaris,

I'm sorry you've been through all this.  I see a few things going on here.  First, I agree with the other posters, that him "flipping" is a common feature of BPD--suddenly going from idolization/idealization to hatred/detestation.  He is a personality of extremes--his reactions are extreme, and he has extreme, volatile relationships with other people.  If he isn't getting from you what he wants when he wants it, well then you are probably evil in his eyes.

Another thing I see is projection.  That's a classic move from a pwBPD--going from the defensive to the offensive.  Now it's YOU who is the abuser, the addict, the one who needs professional help, not him.  You're the one who starts the fights, not him.  You need to change, not him.  You need to apologize and atone, not him.  This tactic of projection and thinly veiled blaming is so common that if you read between the lines, you can often see what's really bugging your partner.  That's because he's ruminating about his own troubles so much, that he practically wears a rut in his brain, and everything he perceives in the world is processed through that well-worn track in his brain.  These troublesome feelings eventually emerge as projections or accusations.  Thus he'll proclaim, "You're the addict, and you're so abusive that you drive me to use illicit substances, you ruined my life, I can't stand it anymore, it's all your fault!"  Does that sound about right?

Finally, what I see is that you have been traumatized.  My guess is that you're constantly in fight-or-flight survival mode, and you're probably not thinking clearly, let alone acting like your normal self.  You might be operating in a FOG of fear, obligation and guilt, which is clouding your judgment.  You might even be losing your sense of self.  That's understandable, when your partner is dysregulated and being abusive to you.  It's not fun having to call the cops.  I'd recommend that you take a time out, to get to a calmer place before deciding what to do.  Then you can figure out next steps.  In the grand scheme of things, moving to a new apartment might be a small price to pay for your own sanity.  My opinion is that an apartment is just an apartment--there are millions of other ones out there.  But there's only one Solaris.  You take care of Solaris first and foremost.

I'll wrap up with a reality check.  You might think back to a time before you met your partner.  Were you lost back then?  Was your life mostly functional?  Were you engaged with studies, a job, taking care of family?  Did you have some close friends and fun times?  Did you practice some hobbies?  Were you generally going in a positive direction?  Though you experienced some setbacks, you persevered and got over them?  That's the real you, when you're not traumatized.  Please don't let your disordered partner convince you otherwise.