Hi Germanic,
I'd like to join

talks to angels and

drained1996 in welcoming you. I'm very sorry to hear about your breakup. It hurts so much to lose a close relationship, and especially a relationship that was likely very emotionally "loaded." In my experience of breaking up with someone with BPD, it will take time, effort, and self-compassion to process this loss. These breakups are not like "normal" breakups, because they often bring up deep issues in our own lives that we hadn't been aware of.
I can empathize with your frustration about losing a friend, as well. I tried several times to be "just friends" with pwBPD, and unfortunately it just won't work. That doesn't mean that it couldn't work for you, but after having had an intimate relationship, it's likely that the same issues and behaviors would be a factor in a "friendship."
As for the connection not being real: I think it
was real, but not true, if that makes sense. The admiration and support was likely exactly that. People with BPD can be loving and brilliant and absolutely wonderful, just like anyone else. The problem may be the "intensity" part. When the admiration and support is over the top, so to speak, it can indicate that there is an underlying imbalance that is being compensated for.
Have you read this article? It helped me tremendously when I got here, hurt and confused:
Surviving a Break-up when Your Partner has Borderline PersonalityKeep reading and posting, Germanic. It really helps to get a handle on what has just happened. We're here support you through this.
heartandwhole