From the many years I have witnessed different people that abuse drugs/alcohol this is all about what is lacking in them. They live in denial and make all kinds of excuses including blaming others and claiming to be victims to deny they have a problem. These individuals exhibit many narcissistic behavior problems that hurt others around them.
It’s NOT because a spouse or offspring are not good enough. This dysfunction is all on the ADDICT. These individuals are “users” and their relationships revolve around their addiction disease.