It's great to hear from you, Coconut. Your new life sounds wonderful.
As for why the mind movies come and go.......IDK. I wonder if it's like having a strange dream. We wake up and wonder why the heck we would have such a crazy dream.
Maybe nothing triggered your mind movie. You experienced trauma and your mind has those images. You have been able to leave the location where it took place. Unfortunately, our mind and bad memories don't always cooperate. Going back to visit your family and the business texts with STBX may have stirred those bad memories.
You know that old four letter word that is used the most on the board.........TIME. I don't know that time really heals everything, but maybe the trauma isn't in the front seat of our everyday life like it was when it was still fresh.
(( hugs))
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!