Just wanted to wish you the best in your journey. My wife was a polysubstance abuser, and has since gone thru treatment. While she was an active user, nothing could be done or said to her that would make her see how crazy/nuts/stupid/irrational/etc... her actions were. It did take an intervention to get her into rehab, but she even knew she was approaching her bottom.
You are going to have to learn to love your wife from a distance.. yes.. it is somewhat of a cold response, but it is what is needed to protect you from becoming a victim of the disease of addiction. I kicked my wife out of the house twice while she was using. She now has a set of boundaries that need to be followed in order to remain... even to avoid divorce. It is not the way i would like to treat the woman I love, but it is necessary in order to continue to be able to love her while respecting myself and my kids.