My 61-year-old father suffered a severe traumatic brain injury (TBI) 4 months ago after falling down the stairs in his home. My mother found him when she returned home from work and he was flown to shock trauma where he was found to have suffered significant bleeding in two areas of his brain (temporal lobe and frontal lobe) and then underwent a craniectomy to manage major brain swelling. My mother/his wife was his full-time caregiver while he required one before getting the skull piece put back on (she still is at the house all the time and has continued to work from home). I live close by and help as much as I am emotionally capable, and my brother (my dad’s most idealized person) lives far away. My parents have no friends in the area, no family in the area, and really very little access to assistance in that way. What family they do have live at a distance and are not great mental health navigation resources.
His brief uBPD background:
My dad has always been a challenging person with volatile relationships, stubborn black-and-white thinking, a need for control, and unreasonable expectations, but also a deep feeling, loving, hard-working, self-sufficient provider who worked his butt off to (successfully) get away from his small, blue collar town and abusive childhood. After years of enduring his verbal abuse and his worsening control over his emotions, I did extensive research and armchair-diagnosed him with BPD. He is officially undiagnosed. A symptom of his BPD became severe alcoholism, which really developed only after my brother and I had left for college.
Over the past 5-7 years, he has participated in a cycle of:
1) falling off the wagon,
2) gradually building up in intensity of anger and issues over the course of a few days,
3) reaching a level of emotional volatility such that he has some sort of "episode" (such as driving off drunk, punching a hole in the wall, changing all the locks of the doors so my mom can't get in, etc.),
4) having a shameful, brooding "come down" over a day or two, and then
5) detoxing on his own and being sober for anywhere from a couple of days to at most 2.5 weeks. Rinse, repeat. In the past 2 years, he has had the cops called on him 3 times by family members for driving drunk; he was forced into early retirement from his job of 20 years; he has drunk-driven his car at top speed, flipped and totaled it, walked away with no injury, received an insurance payout well beyond the 5-year-old car's original worth (with which he bought a newer, fancier car), and got all charges dropped.... you get the gist.
And, to top it off, he was in the midst of the anger episode portion of one of his destructive cycles when he fell down the basement stairs. His BAC was 0.3.
Now, at home post-fall, and although he hadn't been drinking for 4 months, he:
a) has chosen not to take any of his mood stabilizing medications that I worked so, so hard to get the psychiatrists at the hospital to re-prescribe when he got his skull piece put back in (meds that the psychiatrist at his rehab center weaned him off of despite my telling her that they were making him joyful and pleasant - which I have NEVER been able to describe him as, and her saying that he could in theory stay on them after his time in the rehab…).
b) hid a set of car keys from my mother and has driven himself countless times apparently: to the gas station to get cigs, to his PT/OT, to his substance abuse counseling group classes. Note: he does not have a license since his TBI because you automatically lose your license when you suffer a TBI for a multitude of reasons/risks.
c) absolutely berates my mother CONSTANTLY and treats her like his slave to do anything he yells at her to (often using his risk of further injury or destroying her things to manipulate her). She was once a fairly idealized person to him and in the past couple of months she became so devalued that he often acts like he truly hates her (but sometimes doesn’t…). For context, my mom is incredibly meek and passive and certainly suffers from her own levels of codependency and possible personality disorder. She does a lot of enabling and has been making progressively poorer decisions regarding this situation and her own safety.
d) has been having more and more frequent and intense outbursts that have involved changing the locks, driving, shutting off my mom’s phone line, and other reckless and dangerous behavior. He has taken over most of the accounts they share and is withholding access to them from her.

My brother recently informed me that, through his many recent conversations with my father, it is clear to him that all he wants to do is die and it seems that the only thing preventing him from ensuring that fate is that he wants to screw my mom over and doesn’t want her to get any of his assets or anything. He’s frustrated that she is not allowing him to divorce her (which he would have to do with a POA for himself given the TBI, but he doesn’t have anyone to ask to be his POA) and so now he’s trying to offload all the assets he can within the marriage just so she doesn’t get anything, including trying to buy my brother expensive things and send him all of his money. He has progressively made more frequent and more explicit statements regarding suicidal ideation and is “hoping the next time he falls he just dies.” I am rarely (if ever) privy to direct threats or more explicit comments to this effect.

Most recent incident:
The most recent incident that has occurred has been one of the most immediately traumatizing for me and is what has prompted me to seek guidance. In brief, after a night of driving to and from the gas station multiple times, drinking (and significantly) for the first time since his accident, and getting the cops called on him by management (cops just drove him home), my mother sought refuge at my home (which she has been doing regularly for maybe 6 months or so now). My dad shut off my mom’s phone, repeatedly tried to call her on her work phone, and ultimately drove to my house at around 2:30am. However, he mistakenly went to my neighbor’s and crashed his car off their driveway. He called me multiple times and I finally woke up and answered, but all I heard on the other line was this awful painful moaning sound and crunching snow (he had fallen and broken ribs). He didn’t answer when I called him back so I had my mom look up where he was on Find My Friends. So then I went over and saved him from my neighbor’s barn, which he thought was my house. It was 11 degrees F that night and had recently snowed - he was not dressed for such conditions. He refused to let me take him to the hospital and stayed at my place to warm up and sleep it off in excruciating pain. So, now my safe space has been violated and I very well could have woken up to my father having frozen to death practically in my backyard.

We cannot go on like this. But I am at a loss for what to do. It feels so specifically complicated to navigate the BPD, the alcoholism, and now the TBI as an enormous nightmare trio. Deep down he is sensitive and caring and good and he just wants to be loved and do the right thing... but his demons have had a hold on him for so, so long and they are the closest they've ever been to finally drowning him for good. I don't want to sit there and watch his demons take him out but I also don't want to walk away as he suffers what I know is unfathomable inner (and now outer) pain.
He's
just physically and cognitively capable enough to be independent enough to execute all these poor decisions and actions and to fool medical staff into thinking he can make decisions for himself. All of this was EXACTLY what I had expressed to every single therapist he had in rehab (including the psychiatrist), multiple times. Yet no one had any guidance or nuanced care plan for him and his specific issues... and for us as his caregivers. Only regurgitated, pamphlet-level, standard ways to mitigate basic post-TBI challenges, such as "be patient" and "redirect him".
I feel we’ve been failed by the medical system multiple times to get him mental health help (including an immediately denied Emergency Petition to get him involuntarily admitted to psych, submitted by the cops on our behalf after one of his “episodes”... just to name one). His primary care doctor is aware of everything and does nothing within her power. He refuses therapy. I have tried to help my mom by providing her with resources and support and she does nothing with it and it has ultimately caused me consequences by association.
I don’t know what is in my power to ensure I have done
EVERY SINGLE THING I possibly can to do my part in finding a way out of this for him, my mom, my brother, and myself. Ideally, he would be admitted to a psych facility and receive the care he needs there for any hope of a life beyond this affliction. Right? It would remove him from the home for my mom, prevent the consequences of his episodes to us and others, and hopefully give him a future. But he’s definitely not going on his own and I am unclear as to if there is a way/what is the right path forward to make that happen -
if that is even what should happen.
This situation
feels is very actively life or death at every given moment and I constantly fear getting the call that my dad has slipped on ice and died because of how feeble he is right now, or that he got a hold of the keys again and drove and killed others and himself, or that he burned the house down, or that my mom has been harmed, etc. I’m exhausted and heartbroken.
Thank you for listening to me and for any guidance you may have. Sorry for the length.