Painter, I'm sorry you and the kids are going through this.
I found that it was impossible to get an honest answer, or any reasonably intelligent response (followed by action) from my son when he was using. We can't expect sane decisions and actions from someone living in the insanity of addiction.
My thoughts are to take good care of you and the children and let her actions speak louder than her words.
It's no picnic being the parent of an addict. Hugs and prayers go out for all of you.