Do you think if YOU could change or do something different, you could change the relationship?
You really need to be yourself, and you need him to accept who you are, even if you make mistakes.
What you can learn from this is that maybe you are not the right person to help a drug addict, and too close to him.
What he said is extremely abusive! Usually there is more where that came from. Even if you see that he can’t help it right now, this is not doing you any good, especially if you just managed to come out of a tight spot – to be honest, this sounds more like you went from a tight spot into a codependancy.
You are ok, just the way you are! And your main responsibility is your own health and wellbeing! You can never ever compromise on that! And you can be there for someone if you can afford it emotionally, but you can not fix someone else!

*hug*