I had 3 false recons after periods of physical separation, including an out of state move by my ex.
She would come back into my life after months of NC and tell me all the wonderful things she accomplished in therapy, books she read, epiphanies she had etc. I would fall for it, and then not follow up with holding her accountable for not continuing MC or IC.
We would get back together and find our dysfunctional equilibrium after the honeymoon period wore off and she would take off again.
Don't do what I did, and don't be afraid to let her go if she isn't expressing and committing to a continual desire to work on the relationship.