I am coming to realize that my SO doesn't know what she wants or even who she is. I realize this is a hallmark for pwBPD
About 6 months ago, I learned that Dependent PD and BPD are very similar (one exception is that BPD's rage).
Both PDs involve people who are very dependent on others for decisions, care-taking, etc. They really don't know what they want, even if they think they do. I can't tell you how many times my H has said to me, "I'm glad that you talked me into going to X (or doing Y) because I thought that I wouldn't have like that, but I really did." Their fears have them assuming that they won't like something. They also have fears about the unknown to a greater degree than others. I suspect that some/many of them rarely had their "comfort zones" stretched as young children (a mistake on their parents' part)
For 30 years, I have been my H's "rock". He's depended on me to take care of him (of course, only up to a point.) But, now I've been painted "permanently black" so he's now relying on his ill-informed brother to be his "rock". (his brother wanted this role and really "campaigned" for it.) He's following his brother's instructions like an obedient child to a parent. It's so extreme (without rages) that I actually wonder if it's possible to be DPD with one person (his brother) and BPD to me and others?