Hi
If when you met him, he was already a heroine addict, you only know the addict - you don't know the real person at all. I only knew her as an addict. I never knew the real person.
I've read that for heroine addicts emotional growth stops at the point when addiction sets in. Emotional growth can only begin again after they are totally clean for a good period of time. Long term heroine addicts can be very immature.
Heroine addiction is very progressive & destructive.
I am sorry for your situation.