Well testimony through JA was that since the move to Canada had been canceled, she had been pulling things out of the boxes...so I think those packed boxes were intended for the move to Canada
It makes sense that Nancy had decided not to move if she was unpacking the boxes, not that she decided specifically not to move to Canada. Nancy could have moved out of the house with her children, and her lawyer would have very quickly ensured that she had enough money to live on. I doubt the budget would have included pedicures for a 4 year old, which may be the reason Nancy decided not to move.