The games people play come back to them someday.
All this was about her, never about you. It sucks. There is much anger to be had about it for sure. Those feelings will fade once you truly cut that person off, as many have said as well.
It's really all about stopping engaging and never doing it again in another relationship. This is done, her things are whatever- give them back to her, give them away, sell them if you must, but none of that will technically make this all go away.
Sure, we each find closure in our own way, but as we move on if things repeat again and again, and I'm not saying they will for you, but we must look at the only one standing there staring us back in the mirror.
Do whatever you have to do for you. She will never really care or give a damn, since A's only care about the addiction and being caught up in their own selves, no matter how much they seem to be sincere, nice, endearing, loving sometimes, etc.
Best of luck with whatever you do.