In October, comes to me and says she made a mistake
Have you felt that she does in fact understand the depth of her 'mistake' and the destruction it caused? Why do you suppose she got so huffy about MC? Did she ever say what OM was a distaction from? That might shed some insight into how to get her to let you in a bit more.
In what ways did you change while you two were separated? Did she seem to notice?
"Happiness is a butterfly, which, when pursued, is always just beyond your grasp, but which, if you will sit down quietly, may alight upon you."
