My OH is a user.
Things have changed drastically since DS was born but he still smokes it. Not daily any more (or even weekly) but it is still part of his - and our - life.
It's driven us to the brink, OH is self employed and when he doesn't work he has our DS. I found out he'd been smoking it when in charge of child and basically kicked him out.
He did go through rehab, reassessed his use and made many changes but he has not completely stopped. It's now something that he does very recreationally? So on a Saturday he may have a joint, same as I would have a few glasses of wine. Always after DS is in bed...
I know he isn't smoking more as he has put measures in place to assure me, for example I am in charge of all household finances. He couldn't be buying weed as I account for all the money and OH was happy for this to prove that his usage had changed.
OH still smokes tobacco though and in all honesty this pisses me off more than the weed? A joint or two a day is now 10+ rolls ups a day??
I am an ex smoker (fags, never the other stuff - I dabbled as a teen but never liked it) so in some respects I do understand the struggles as a smoker.
Sorry I have rambled but basically weed started to seriously effect our relationship in a negative way. When we were single and childless - lived together for 7 years, DS is 2, it was fine. I mean I never loved his habit but it didn't effect our lives so negatively. Once child arrived though things changed and my OH didn't.
The past few years have been hard, we've had many struggles - not just with the smoking - but I think we've finally turned a corner.
The next aim is for my OH to completely stop smoking, everything but as someone who successfully stopped several years ago I know that the timing has to be right.
My OH was never stoned, years of use means he doesn't get buzzed but he was heavily dependent, he has come a long way but still has a way to go.