BPD is a persecution complex. So yes, the victim mentality tends to be a core feature.
The most important thing you can probably take away from this, in the future (e.g. in another relationship), is always to be the best version of yourself. When you are angry, walk away, be patient. Don't be a major a-hole, don't spew vitriol. Don't react. No matter how much they try to provoke. Be the rock within the storm. Silence is golden.
Wow what a great post. Thank you. I needed that today. I am missing my ex so badly today. But I can't even imagine the extent of his smear campaign as it us pretty brutal from what I can tell. So no point in missing someone who doesn't respect me. Sigh. All I can do is improve and try to be my best version of me.