Being woken up at 3 am
Who is part of this fun club. Where you'd get woken up at 3 am for fights or screaming or wailing? It took me 6 months of being broken up before my nighttime system was regulated enough to sleep through the night again. And make no mistakes, it's done on purpose. A normal caring partner will take care not to wake you up while you're sleeping. BPD will wake you up so they don't have to be alone in the void.
Getting my sleep back was worth all the pain of the break up and everything. Walking around like a zombie and then expecting you to be your best self is so unfair and gross and frankly abusive.