If you focus on yourself, what is right for you to live with, rather than what HE does or doesn't do, you will have more clarity.
Normal "supportiveness" doesn't apply to addicts. Everything normal goes out the window, and lots of counter-intuitive things come into play.
Addiction responds pretty much only to PAIN and DESPERATION, which typically are brought about when all enabling and normal "support" are withdrawn such that an addict feels entirely the consequences of their choices, whether it be homelessness, jail, "abandonment" by friends/family, etc.
If an addict feels alone, it is due to the addict's own choices and behaviors,
not due to the choices of the people close to the addict as a result of addict's addiction. Only he can own his choices and behaviors, and the results of them.
CLMI