I think closure is overrated. As long as she's still wayward, you cant believe anything she says anyway, so whats the point.
There's tons of things that I would love to say to my ex. Tons of things Id love to hear. But, really, all that is is me wanting to get that person to acknowledge they were wrong. To acknowledge my pain. To admit to being 'the bad guy'. To tell me that I deserved better. To accept their faults. To note my improvements. And so on.
Would that make me feel better? I dont really know. On the one hand, its certainly nice to hear those things. But on the other hand, I dont think it would help me to 'move on' - if anything it would possibly reignite some spark towards reconciling as it would show growth on their part.
In the end, I decided that I didnt need any of that. I know I did what I could. I know that Im in a good place. And I can only hope my ex is too. Ive essentially fallen off of the earth with respect to that other person and Im in a much better place psychologically for it.