Hi
allygirl and Welcome to BPD Family!

Having a relationship with a pwBPD (person with BPD) is exhausting indeed and I'm glad you reached out here for support. My pwBPD is my DD25 (25-year-old daughter) but I grew up with a sister with many BPD traits so I have an idea of what life may have been like for you. I was the people pleaser in my family and felt so so bad for my parents having to deal with my sister's out of control behaviors. I tried to be good so they could get a break, you know?
Can you tell us some more about what behaviors you're having difficulty with? It helps to have more information so we can know how to best support and advise you.
I'm glad you're here - you will find a lot of great support here, and many others who know what it's like.
Again, welcome!
~ OH