Borderline,
It isn't about being on the cusp of reality,
or if you have other personalities,
Borderline is...
Bordering on breaking point,
on the border or shifting emotion,
when all it takes is something so insignificant to make you feel, such high intensity until you connect the dots to figure out why.
It's about feeling alone when the person you care for isn't there, even temporarily.
Like apart of your soul that's attached  has been ripped out, that's why they call it attachment.

Mending the  pain and feelings you experience require bandages of your making,
such as liquid poison or the calming of your own blood to see your alive.

You feel other people's emotions,
like touching their skin and absorbing their values, traits, hurt and happiness,
you can put yourself in their mind for awhile, because it helps to not feel your own for to long.

Borderline personality is many things more than I care to explain,
But we aren't the Borderline,
we are buried underneath trying to connect in ways that seem "normal".