I agree.
It's different for everyone..but I couldn't live with an active addict.
Whatever boundaries I had he slowly ground them down.  I thought I was losing my mind.  We fought constantly, he didn't work but he'd be asleep when I left in the morning and when I got home from work, he was irritable and constantly ..weird.  And then he finally laid his hands on me.
Drugs or no drugs... it became intolerable.
I moved out.  We are still married and I tell him I love him and will be there for him if he chooses recovery.  It's a lot easier to maintain boundaries and your sanity when you don't live together.  I see him when I want to (once every week or two) and can leave and go to my peaceful home.  If we were still living together, we'd be divorced now.  

Stuff is much easier to handle when you can go somewhere else.  For example... we were supposed to go away for the weekend.  He texted that he couldn't go as he had been using and he was really sorry (I don't see him if he's been recently using)... I was upset but just texted back ok, that's too bad, I love you.. and I calmed down.  If we lived together there would have been a massive. fight.  The whole detachment with love thing is so much easier when you don't have to see and fight about the pipes in the trash, the bags under the eyes... the sleeping till 4pm and blowing off dinner.. the erratic angry outbursts...the irresponsibility... the internet porn..etc etc.  He's going to do it anyways.  This way I don't get hurt and angry every single day.   Just my 2cents