My emotions slowly aligned with my rational mind, helped by therapy and medication.
Nice! Well put.
I'm letting myself be played like a violin, she's doing all that BPD stuff and I'm joining in with most of my part. In danger of being recycled unless I can recover my strength and resolve. Can feel myself being sucked back into her orbit.
It's clear from these statements that you are giving her all the control and you know it. Time for that rational mind intervention again; if you want to do the dance again, then by all means, but if not, there's an opportunity to take control of yourself.
More obvious than profound, but it's all I got right now. Take care of you!