Hi, Alwaysthere, I feel for you, what a sad situation. My nephew was on heroin too, sadly he did not make it.
There is a friends and family board here ,there may be people going through similar experiences there.
The advice already given to you is good advice.
He will say many things to upset you but try and remember that this is his addiction speaking, and not him.
If you can, get some emotional distance between yourself and him, as hard as that may be. The trouble with addicts is that everyone around them suffers too.
It is a terrible thing, but you cannot help him -only he can do that. As Paloverde and Zero said, it is down to him
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