I think you are wise not to force a decision. Here is my ESH on the subject.
Awareness-->Acceptance-->Action
They go in that order. IMHO, I think you are still struggling with acceptance. Still hoping something you say or do will cause him to see the light and get his act together. If you take action at this point, it may be the wrong action, or it could be the right action but you won't be at peace with it.
Acceptance is the key. Once you accept that you truly are powerless over him and his addiction, then you can take meaningful action. So right now, try to wrap your head around accepting WHAT IS and don't worry too much about action. Once you reach acceptance, action will come naturally.
My two cents,
L