Money mooching. Too common. I've seen seniors not so wealthy pushed to their financial limits enabling/ignoring the signs of alcoholic family.
The alcoholic and addict may need help but they have to accept it and work at their recovery and quest for sobriety. They must take responsibility for the consequences of their actions. If they bankrupted someone mooching money they must accept the fact they played as much a part in that because they are the ones that voluntary exploited the family relationship asking for/using borrowed money for their habit. Some might call it using the money in bad faith.
2 and a half decades sober, good job!