She can't do it for you, Steve, she must do it because she wants to for herself. And her words mean nothing since they are never backed by action. Perhaps after 6 months in rehab she may have some credibility, but again, "she" is the one who has to take that step for herself.
Waiting to see how she is, what she says and what she does is a waste of your emotions and your life. Putting conditions to her solves nothing. Sticking to your boundaries for your own health's sake is what will help you stop the codependent dance.
Trust me, I've been around the dance floor more than once and I choose to sit the next one out.
Hugs