dr4kee, welcome! we understand how unsettling it can be to deal with BPD. I can relate to your feeling weaker and weaker with each new attack. It is a unique disorder that can make you question and feel uneasy, sometimes feel upside down. You're not alone.
What do her mood swings look like? How do you usually respond?
Take a look around here and read up. It helped me a great deal to read up and understand what was happening. It takes time to feel strong again, but I promise it's possible!

pj