You want the AA point of view - or at least the spiritual point of view. I take it he is still using from the previous posts. 1st of all you can't say a whole lot to him until he quits. He has to want to quit and you telling him to isn't going to be the way it happens.
Most importantly if he quits or if he has stopped using. He needs to really work on his spirituality. If you can't accept that God - at the very least - forgives you for the wrongs that you've done (implying that you've done up to step 7) then you haven't done a good enough steps 1-7. Most likely there is something that he is still holding on to yet. Doint those steps and doing them right will put you well on the way to not feeling so bad about yourself, at least the point where you don't try to drag others into your own pity-party.
So in short my advice is - if you feel you have to talk to him. Tell him that he needs help, but you are not the one that is going to help him. He really needs to have a sponsor (I am willing to wager that he has no sponsor). Both of you being in recovery know the easier softer way that AA or other programs offer and you just need to do them.
