Strangely I found this thread useful when feeling the same way...
https://bpdfamily.com/message_board/index.php?topic=64664.0I am completely detached from my BPDSO and yet I am still here. Maybe for the kids, maybe I'm now just as broken as she is, maybe I'm just scared of where she will end up if I leave (dead or in the gutter). I just have no idea any more.
Whatever the reason, I'm there too. Many of us are. You're not alone in this mess.