Wow. This is a fine piece of writing.
It hooks and never lets go.
Intriguing ending, but it goes along with the premise. Would we not all wish to be able to rewind, relive and repair. Ambiguity is not only the aparent contradiction in words or actions, it is also inability ot make a decision.
If we could change something in our past, what would we change? What repercussions would that change entail? Would we be willing to pay that price. Would we rather "err" again, knowing that the error will also bring something good?
Fascinating!