I agree, there is rarely "ideal" closure. I think *expecting* anything with regards to closure is indicative of our attachment to what was or the workings of our Ego and our limited understanding. Closure is only made so by the peace we make within concerning the reality of any given situation. This is ideal closure.
As an example, my first go at a serious relationship. I have never heard from her again after our 5 years of being together. Now, that was over a decade ago. I believe I have moved on, but I bring it up to make the point- am I expecting her to call sometime? Am I hoping we could have ended things on more amicable terms?
Or on the flip side, a year or two ago I decided to end the relationship with a friend for the benefit of my well being. Was that closure in the way *he wanted? Likely not.
Who knows what life or circumstance will present to us, or whether or not we will face those we've decided to walk away from ever again-

I can say- God works in mysterious ways, and the alchemist or the soul who desires to take the reins of their life or seeks God looks at all that happens to them/through them as an opportunity. I'm happy closure hadn't happened in the way I though it should- I mean years ago when I was hurt and expecting my hurt to be shared or validated. I sincerely believe I chose to be born here, and that means learning about things that go beyond my understanding and expectations. Learning by unlearning.
It's a glorious process, and we're in the beginning stages of evolution towards union with God.
A good practice we can cultivate, with ourselves, is to cherish the moments we've had with others who have decided to become ghost of our past. To find the good things. But this also means to accept the things that weren't so pretty either, to understand whatever that energy wants to teach us- recognizing that within ourselves is that childling soul of light and shadow learning in time and space.
In some religions, we have billions of years of lives yet lived on other planets and other solar systems. But know that it's all for a reason. God loves us... Seek God in all things.
Jai Guru
Who knows what life or circumstance will present to us, or whether or not we will face those we've decided to walk away from ever again-

* from Tides Detergent in quote above.
We have made some incredible advancements in psychological therapy. We have a few stretching exercises we administer to make sure closure is completed. No need for any wishy washy kick backs.
The sisters of the inquisition