Hi and welcome to the board.

Several of us here have been diagnosed with PTSD and also have family members who have either BPD or BPD traits (among other things). Being raised by dysfunctional parents and all that that entails is hard to manage but it can be done. You are not alone and we get it here. We can help support you as you work your way through this too.
It is always good if you can get professional help but if you can't it is possible to work on recovery on your own. We talk about tools and skills here that help us cope and manage some of our feelings and symptoms of PTSD too.
You ask:
If I had one question, I guess it would be this: has anyone here gone from socially isolated to having a healthy social life after 42+ years? My parents moved us around more than 50 times before I turned 18 and everyone was always a temporary friend. I don't have childhood friends and I didn't attend college. Statistics say I'm in for lite versions of friendship since I didn't form those bonds early in life. Don't get me wrong, I'd rather be all alone than keep making friends with BPD, NPD, or schitzophrenia (I used to be a magnet)
That's most of it in a nutshell. I am married, but my hubby has some memory problems.
I struggle with personal relationships as well even after a lot of recovery work. I have made some progress but I too don't think I will have a more typical social life. The fact that you were able to get in a relationship and married is impressive to me and gives me hope for you turning things around at least a bit. We have many members here who are working on the same thing.
What do you think keeps you from having more healthy relationships?