Unfortunately part of addiction is being so focused on the next hit or the next drink or whatever that they're unaware of anything else. One of the common denominators of addiction is they are more about the need than the people around them that truly care. I've known people that have lost jobs, homes, children, spouses, family, freedom and sadly their lives.
Until the addict realize they cannot stop or fix it, they truly are convinced they are fine and they don't have a problem.
As difficult as I'm sure it was, you're better off distancing yourself from that. I hope you're willing to be available if they call for help, but that doesn't mean you need to be involved or tolerate the situation in your life.
