Hey roses-
However, after reading so many stories of BPD's returning, I am worried that she will reachout one day and claim I was "perfect" again and want kids.
The best defense against that, like many things, is a good offense. If you move forward with your detachment, take your power back, which is a big chunk of detachment, recenter and reground yourself, and move towards an empowered life of your own creation, what she does or doesn't do becomes irrelevant. And if she does show up you will be looking at her with different, more empowered eyes, and you can do whatever you want from that place. Plus, my experience, if we have the opportunity to reengage with our exes somewhere down the road, once we've detached, grown and educated ourselves on the disorder, nothing the borderline uses works anymore, it all becomes transparent, and therefore powerless, and in my case pretty pathetic.
Have you checked in with the stages of detachment over there ----------->
lately? Where are you in that today?