I’m in a similar situation also. Was giving drug tests for a couple months that my partner always failed. He would make promises to quit, which seemed to do the opposite. He’s staying with family now because I told him I can’t live in the same house as him when he’s doing drugs.
I think it’s good to set your own boundaries in order to keep yourself from going crazy. At the end of the day, we’re going crazy over someone else’s actions. It’s like we’re so focused on their life, that we forget to focus on our own.
No idea if sticking around is the right answer, but I guess there’s always hope that things might get better.