J.R.
I would recommend that you visit the website bpdfamily.com. Go to workshops and look for the video from Dr. Xavier Amador. He wrote a book called "I Am Not Sick, I Don't Need Help". This will give you some insight into the perspective of an undiagnosed person with BPD and what you are facing if you try to get the individual into therapy. There are a lot of other tools and resources on this site that will be helpful for you. You will probably be able to do more for your son than your husband, but if you are commited to staying with your husband there is great information available on how to avoid triggering rages (through validation) while maintaining your own personal boundaries. Good luck to you!