She did a touch back to see if you were still an option for her, and once she satisfied herself that you were, she went back to her life.
Let go. Live your life looking forward, not back. If she shows up with a year of sobriety and being appropriate with the kids, then you can consider whether you would want her back. But anything less than that - nope. And stop holding your breath - it’s not impossible but not very likely either that she will do the needed things. Go on with your life. Don’t respond.
