That is really sad. I am sorry. My x has lost his wife, child, job, business, family...and still keeps on going. My sister use to say "wow, he just keeps on digging. And while he digs he says, I'll show you!" and he just kept and keeps digging. Where and when it will end is yet to be seen. It drives me crazy not to know.
I have said this many times, but I will never understand the pull of drugs. EVER!
Hang in there, and best wishes on YOUR recovery.