Much like any drug unless it’s recreational and both partners approve, then so be it, if it’s a full on addiction and us effecting your family then I’m sorry to say you need to leave as they will choose that shit until it’s to late
Oh I should add I’m no Saint and go for a beer at weekend and sometimes have coke, but never would I hurt or harm anyone around me, sad to say but your losing a battle with addict’s unless they choose to change for the sake of there family