Hey Fryejd, I also want to welcome you to the board and a family of people with similar stories. It's got to be overwhelming and difficult to deal with this, and people here can help.
Do you have a support network family and friends, you can lean on a bit to help you through this? You have been through a lot and it helps to share with others and ask for help.
I'm going to put a link that is a general guide but I'm sure you are feeling a lot of things, so take some time and breathe. This is going to take time and patience, both with yourself and your SO.
https://bpdfamily.com/message_board/index.php?topic=61980.0Let us know what you think.
YNWA.