Not a textbook pwBPD, but there are some similar behaviors. Over the years I learned to take falls with grace. Some things don't sting as much as they used. 
Breakups will always spiral me. Death, fairly the same. However, one thing that does it right away is car trouble. Literally as im writing this a tree has fallen on my car and most likely totalled it. 

Here's the part when I call it, "the spiral and the vortex" its not just the fact of inconvenience and poor circumstance. It's every failure and every short end delivered through life happening all at once. It sucks me into a vortex and the spiral is the array of emotions. Its so easy for the goto of saying fuck it. Little voice says grab every drug,  every low hanging fruit of casual sex and anything destructive and do it. It doesn't last forever but man does it spiral me. I'm spiraling now. Anyone else get that?