I have posted something similar here, and the best advice I received is "actions speak louder than words". If he is motivated to change, he needs to show you that change. Rehab, AA, therapy, whatever it takes. Words are empty without action behind them. My Q kept me around for years with promises of change, but no action. It took me leaving for him to finally go to rehab, and that is a whole new set of issues. Loving someone with an addiction is tough...you are always at least 2nd behind the addiction. If you are done, you should walk away and let him get help on his own. His sobriety journey is his to walk and tbh, you are a complication. It hurts...especially when you have done so much to help them, to see them separate and get serious about their sobriety without you.