(((((susan))))
If you can pick yourself up and get back to your recovery, and you did, by calling her back with a more positive message, maybe she can, too. She fell back in the old ways, you joined her, but it was brief and it sounds like she owned up to her mistake.
It's just another lesson learned.
The hard way.
Sometimes it's the only way to learn.
You did great. It's progress not perfection....