hello H71,
welcome to the BPD family. glad that you took the step to make your first post. Interesting that your partner has been diagnosed with Emotionally Unstable personality disorder. I find that a more accurate name then the old BPD. Can I ask, is your partner accepting of the diagnosis and actively in treatment?
I would say the best place here to find strategies is in the Lessons thread. At the top of this board is a thread that is permanently pinned there. It's locked but contains links that take you all over this very large website. Explore what seems interesting to you.
for me what was a good starting point was this link:
https://bpdfamily.com/content/what-does-it-take-be-relationshipwhich eventually led me to communications skills and validation. have you heard of validation and how important it is?
'ducks