I think its something we all go through no matter the type of therapy if we have been with the same therapist for a relatively long period of time. Part of BPD is abandonment issues real or imagined and self-blame for that abandonment. So - essentially, we see the therapist as abandoning us .. and count down the abandonment with dread .. and try to figure out how we can "right the wrong" so the abandonment does not occur. Meanwhile - our emotional health is anything BUT healthy. And right after the "abandonment" it's even worse for a time - until/unless we find a way to calm enough to put what we learned into action to see if it works or if we need another counselor.