You might find these papers helpful:
https://www.bma-wellness.com/papers/...lcoholics.html I HAVE to drink (or drug) for my work
The addict insists that he will not be able to make a living or that he will no longer be successful if forced to "give up" the increasingly harmful and destructive behaviors caused by his addiction. He may regard the latter as "the cost of doing business." In the vast majority of cases, of course, his addiction has already begun to impair his work performance, his judgment, and his interpersonal relations.
I'd be OK if it weren't for you
The addict blames his addictive behavior on his significant other, usually his spouse. He feels resentful and self-pitying about the way he considers himself to be treated and uses this to justify his addiction. Since one of the commonest causes of resentment and self-pity in addicts is criticism by others of their addictive behavior, and since the characteristic response of the addict to such criticism is to escalate addictive behavior, this process tends to be self-perpetuating. The addict is often quite cruel in highlighting, exaggerating and exploiting any and every defect or flaw the significant other may have, or even in fabricating them out of his own mind in order to justify and rationalize his own behavior.