Rubik's cube relationship

A Rubik's cube relationship is a relationship that has gone south, typically with a narcissist. Trying to get the relationship back to where it once was, is like trying to restore a Rubik's cube back to its factory new condition. The relationship has flipped, and gone from the best thing that ever happened to you, to a total and complete nightmare.

Her: Why did you and your ex get divorced?

Me: It was a Rubik's cube relationship. It went south and we could never get it back to where it was, mostly because of the word salad, the loop de loop conversations, and total lack of accountability