Others may know more , but my T worked on something similar with me. Like he would say a part that is a " protector " will say something like " let's not go and look at the problems and what is hurting and let's go have coffee instead " or it may be something that warns other parts that want to look at something off. So it protects you ( and your pain ) , and it means well , but you have to get another part to try to convince the protecter that it's safe to go there. I use DBT skills although I'm don't have BPD , so I'm unsure about how this might work with BPD. Hope that helps !