I can definitely relate to a lot of the feelings but I think usually my behaviour is a bit less extreme, I do feel suicidal sometimes after interactions with people that I've felt are abandoning me, I've also sometimes implied to people that I may kill myself, when I've been very upset
When I was younger I used to wreck cherished objects but as I've grown older I can't imagine doing that. I definitely used to topple dressers and stuff in a rage and tear up photos and that sort of thing, and later I'd feel so guilty about it
My mother used to do that a lot (smash and throw things etc) and and I think it was a learnt behaviour that I managed to overcome as I've gotten older, but I do believe she has full BPD, she refuses to see a psychologist but all my health providers that I've described her behaviour to have said sounds like BPD
My official diagnosis is general anxiety disorder, major depressive disorders, panic disorder and substance abuse disorders (alcohol, marijuana and benzodiazepine) and it said my environmental and genetic factors have contributed to mild personality vulnerabilities (which I think some of this is the BPD features my psychologist mentioned to me during our sessions)
It's the fear of abandonment that's a big thing for me and where I seem to get most upset and then either frantically text people or, block them to avoid the pain.