Thanks for all the support and advice, everyone.
I did read the "what addicts do" thread last night and it was very eye-opening...
You're right....I DON'T have to deal with this anymore....I just don't think I have personally gotten to the point where I'm ready to give up hope. I'm going to see how things are when I get home from work tonight and then make the decision about whether or not to revoke the bond on letting him out of jail. If I revoke it, he'll be in jail for another month or so until his court hearing occurs, and then he'll be free to leave our state to move back home with his family in another state.