Yes, I've noticed the same. I think pwBPD prefer routine and stability.
I've experienced the same and found that I can only do so much before it crosses the line and I start feeling like I'm a caretaker for my uBPD wife's emotions, so I do what I can to support her but not to enable her,
see here. The pwBPD is an adult and ideally should be responsible for their thoughts and emotions and learn to self-sooth. Hope that helps. Let us know any thoughts, questions.