Hi Sunshine! Welcome!

That's a lot of stress and high emotions to deal with. I'm glad you found us here. We're a supportive board with a lot of tools and experience we can share that might make your situation better.
Has your partner been diagnosed with BPD? A diagnosis doesn't really matter in the grand scheme since it's the symptoms and learning how to deal with those that are of the most importance. Can you tell us a little more about him and what symptoms he has that cause difficulties in your relationship?