Sorry to hear about your struggles, It must be very hard.
Someone who I know going through similar struggles with a loved one found support via "Ala-Anon" or "Narc-Anon" groups.
Also here are some helpfull posts I was sent a while ago. Perhaps you may find them useful.
- The addicts perfect alibi | Recovering You addicted to an Addict? 5 Warning Signs| Addiction Recovery http://www.al-anon.alateen.org/affec...eones-drinking