So I have a huge amount of questions, not least of which, how can I cope with all of this?! I'm out of my depth. I've felt like an emotional caretaker, sacrificing my own mental wellbeing.
For a number of reasons, I'm worried you are experiencing some possible traumatization yourself. Seeing a loved one threaten to imminently kill themselves is trauma. It just is. That's not a statement about her being good or bad. Therapists have to do extra work on their own to make sure they don't get secondary traumatization from clients - and they have professional distance and that makes it very different. For a husband? It makes sense why you are so hypervigalent.
Ever flown on a plane? They always say in the safety drill that someone has to put on their own oxygen mask first before they help someone else... This is because if you don't take care of you, you can't help anyone else.
In my opinion, which you can take or leave, find counseling support for you as priority number one. Then couples counseling. She will get her own counseling on her own when she is motivated enough to do so. (And she does need therapy, PTSD, BPD, or not.) Really, her work is very critical, but if she's not willing, or flaky, you gotta focus on support for you.
Look into relaxation techniques and build up a new network of support. There is enough chaos happening - do you have crisis lines handy? If she acts out, call them even for advice and support. The more support you can get close in time to all this chaos and danger, the more it will help reduce the long term negative impact on you and the kids.
Boundaries and helping/being compassionate to her struggle are NOT two separate things. They are one and the same. People with these kinds of symptoms benefit from boundaries that are gently but clearly communicated. Keep in mind that boundaries are not about controlling or changing another person, but about ourselves. What we will and will not let into our lives.
Look into DBTselfhelp.com and look up DBT workbooks online. The way they are written work pretty well for people with BPD, and frankly, most of the skills in there would help most people cope with stress and build better relationships. They can be helpful for supporters too.
I have warned her on several occasions that I want a wife foremost, not just a friend. Now I believe that what I thought were BPD traits were just symptomatic of
PTSD.
There is a condition that's not a formal official diagnosis, but still and often given diagnosis, called complex PTSD. It usually means PTSD plus BPD or dissociative symptoms. No one here can diagnose, as there could be so many things going on here, but that could be one of the things in the mix.
One thing to be clear on: no diagnosis makes it ok to be verbally or physically abusive. Period. Don't use any diagnosis as an excuse for her to be abusive - it's not compassionate to her, and it just makes things worse.
As you hold more clear boundaries, she may act out more. It's not because you are failing, but because you are changing. This is part of why you need to stay connected to professional support.
I don't blame her at all for the things that have happened, but things she says indicate to me that she does blame herself. According to her, these were her mistakes, she has lived with the consequences, lived with the memories, she has dealt with things (paraphrased from texts last night).
Misplaced guilt and shame over traumatic events is quite common. This may also be her way of trying to cope, to minimizing the weight of the past and the seriousness of the current chaos and dysfunction. It's all a way to try to cope with the overwhelming pain she is in.
I love her. She loves me. We have two girls together. I have a son by my previous marriage. I'm breaking under the strain. I went to see a counsellor last week, and she has agreed to come to the next session, which is hugely positive. She has refused counselling in the past, and even refused to allow me to go, saying "if you go you may as well end things". I don't know if it is a good idea to bring everything out in the open. I will focus on myself and what I see and experience and not let her off of the hook. I have warned her that I will talk about whatever I like, and will not stay off of these traumatic events as I believe they are affecting me. She has not backed out of coming.
Back off on pushing her to talk about her trauma. If she's not ready, she's not ready. Yes, it's important, but it's not resolved by pushing someone into talking about it if they are not ready. You could mention you have compassion because of her past trauma, but I wouldn't even get more specific than "past trauma" in front of her. Let her tell the therapist her pain when she's ready to get help for the past.
She need scoping skills boot camp more than anything else to stabilize her symptoms. Possibly meds too, but only a doc and therapist can figure that out.
Back off on spending time interpreting her behaviors as resulting from the trauma when you talk to her. She's clearly trying to push back on that by saying she has dealt with it. That denial that she has is a way to manage pain.
Focus on you. Focus on your pain. Your fears. Focus on the behaviors that can not continue. Focus on what YOU NEED for this marriage to continue, for you to feel safe and secure again, for your kids sake. Focus on the changes you need in how she copes with things. A serious reduction (and eventual end) to the screaming, throwing things, self injury, suicidal threats, chaos around the kids. Be very clear and concrete on those things. The more you make it about you and your needs, the less defense you will get from her. She can't argue your pain isn't real.... well, she may try. But if you focus on the trauma being the cause when she's not ready to face it, then she will just get focused on "I've dealt with it!" So focus on the here and not and what's not working FOR YOU. Let her choose to bring up the trauma. It's clearly on her mind and just under the surface.
The more you let the therapist handle the past and clinical interpretations with her, the better.
The more you focus on you and your pain in the session, the more you will help her, your kids, and most of all, the more you will help the therapist help you.
Have I gone mad? Is it my attitude and expectations that need adjustment?
As far as I can tell based on your posts, you are not going mad. If an attitude or expectation adjustment would resolve everything that is happening, I'm sure that would have worked by now. it hasn't. This is a situation that needs professional intervention.
If she says she has dealt with events from her past and is content with herself, should I also be content with that?
I'm not surprised at all that she says she is content with herself. What she is doing now, is "working" for her, and is easier than facing the fears of facing YOUR pain, her pain, and the real impact of her mental health. When her out of control behavior stops working for her, i.e. the consequences for her behavior are higher than her fear of getting help and facing her own stuff, then she will get help.
My wife may seriously harm herself and the children would be at risk. Now that sexual assault is the issue, I cannot turn to family and friends for the support I have been given in the past.
It's almost certain your young children are already being impacted by having their mother, one of their basic caregivers, be so out of control, and the hypervigilance and traumatization you might be showing.
I would suggest reaching out to any UK domestic violence or BPD support groups. If you have friends who are outside of the family, who can even just be there for you to talk about other issues other than the sexual assault, stay connected to them. Don't isolate yourself into this crazymaking world.
You are dealing with a lot, and you are doing a lot of things right. Kudos to you for the good steps you have already taken. I hope you keep reaching out.