<human>: Provide a brief overview of the text.

My partner and I have been together for a few months and are planning to move in together. I am strictly substance free. She drinks very rarely and smokes pot even less frequently than that. 

I feel really uncomfortable about her smoking pot. The drinking doesn't bother me at all but I can't get past the weed. I'm having a hard time explaining my feelings to her, which might be part of the problem. To be clear, she hasn't smoked the entire time we've been together and it seems like the chances of her smoking if I hadn't brought anything up are pretty low, but I still felt like it was a conversation worth having.

I don't want to be too domineering or tell her what to do. I feel weird about asking her not to do something, and she would also feel weird about that. But I also know that if she did smoke there would be some pretty real unhappiness between the two of us. Any advice for us on how to work through this issue?
<bot>: I don't want my partner to smoke pot anymore but I don't want to tell her what to do. How do we avoid an issue here?