Hi,
Thank you for posting. I work for a charity called Icarus Trust that offers support to people like yourself dealing with addiction in their family. if you get in touch one of our trained and experienced Family Friends would listen and try to answer some of your questions. Maybe this would help you to know what to do next and they would let you know what other help is available to you and possibly for your partner.
You can contact Icarus Trust on help@icarustrust.org or visit our website http://www.icarustrust.org
I hope this helps.
Good luck.