When your mind travels to the past there are a lot of stories you can search and play the character once again,
then some emotions appear to tell your version.
Let those emotions such as Anger, Shame, Guilt or Resentment to be replaced by Love.
Accept your version, is it true for you, accept and let it go.
Forgive other characters and the process itself and one more time let it go.
That is re writing the story with Love.
That was already there but replaced.
That is normal, never forget your character.
But remain with Integrity in the scene.