Hello Neveralone and welcome
I just answered your other post.

I'm glad you found this forum, it's great with many lovely like minded people who can offer support and advice to you.
I want to say that so many of us on here, including myself, come to this forum wishing and hoping for that person we fell in love with to come back, to reappear and replace this angry, often unrecognisable person standing in front of us.
What this forum really helps with is understanding that these are both aspects of the same person, but what is happening to your SO is that their behaviours and moods are being affected by aspects of BPD.
Here is a link to the lessons to get you started,
https://bpdfamily.com/message_board/index.php?topic=56206.msg913187#msg913187Take your time and read around this subject as your starting point. Reading the information here is the start of making sense of what is happening for your SO and also for you. I know I was reacting to my dBPDhs behaviours in a very negative way, feeding his stress with mine and often making things worse for us both. I thought I could make him better.
Coming to this forum helped me to take a step back and start looking at myself and my needs, and realising that my focus needed to be on taking care of me and my s7. I appreciate that this can be hard and overwhelming finding the starting point to putting this into practice. Do you have anyone like a T that you see for support ? Does your h have anyone he sees for support ?
For me reading the lessons and putting into practice some of the techniques I have learnt has helped improve my marriage, it did not make the illness go away, but I understand more now and I am better able to disengage and read situations better.
How old are your children ? It is positive that your h does not rage at them, my h never has at our son either, but like you there have been occasions where our son has heard things I wish that he hadn't. However that has also stopped since I have learnt to manage myself better in response to my h's dysregulations.
Keep posting and keep reading.