Addiction is a progressive disease and because he was in rehab does not mean he will start back at square one. Quite the opposite. When he relapses, he will pick up where he left off and the disease will continue its progression until he is either in an institution, in jail or he dies. The other alternative is recovery. Unfortunately it is impossible to predict who will make it and who won't. He is still using pot and booze and will probably go back to crack eventually. The only person that you need to worry about is you. You can't control what will happen to him, but you have the choice of improving your life and finding someone who does not have an addiction. Sounds like you have a good start. Keep going forward and if you look back, look back only to see how far you have come. Hugs, Marle