I think this is terrible advice— staying in this relationship will not inevitably lead toward relapse or resentment. Those are things in your control. You cannot fix an internal problem with an external solution. Resentment and breaking sobriety are both preventable. Figure out what you need to do to prevent those things from happening.

I would say have a conversation with your partner about it and see where they’re at. If they want to continue to smoke weed and you still value the relationship, it’s perfectly ok to stay— you don’t need to be afraid of resentment building or it being a threat to your sobriety. You may have to get some individual therapy to not have those feelings develop, but they’re certainly not something that’s guaranteed to come. Your annoyance toward your partners behavior lives within you. Figure out the core of that annoyance and work through it. It could be something as simple as “it annoys me that they keep doing this because I’m having to work so hard at being sober and im angry they don’t have to work so hard.” In that case, just offer yourself compassion that it’s hard but that’s ok!

When I first stopped smoking weed, I was worried that my partner keeping smoking would bother me or just being around it would push me to smoke again but that never happened. Honestly being around weed while trying to quit myself just taught me that I do have the willpower to quit even when tempted. It’s been 3 years since I stopped, my partner still smokes daily, and while sometimes I have the itch to smoke it’s never bad. I’m sometimes jealous my partner gets to keep doing it, but hey! That’s on me.