Did he go to treatment yet? If so, he's already been through withdrawl forget the rest but not the tlc.
Will he join a fitness program? Will you both join one together if you aren't a member already? Is he working? Have the two of you been spending time together, going out for supper, movies.. Ect.?? Maybe your relationship needs some mending after this? Did you loose respect or any type of feelings for him after finding out her was an alcoholic?
I think he may need to keep busy and/or you might have to work on gettting your friendship back into your marriage. Be honest with him, tell him how you feel and what you need from him. In my opinion, he's got no excuse to be acting the way he is unless there are other issues causing him to be unhappy and in order to deal with them he'll have to open up to you. If there are other issues concerning you or your marrage hear him out and try to work though it. It may just be lack of communication.
Hope this helps. :wink:
suzi