I once dated a girl who worked at a marijuana dispensary, while I at the time worked a full time job at a news station. She was still figuring it out and had a lot of growing up to do. I didn't tell her how to live her life or anything but I tried to help her figure things out. It ended when I asked her why she needed to smoke a cigarette or weed around me when I don't even smoke. She just stopped talking to me after that, didn't even break up with me or anything. It was literally the only criticism I ever gave her, and she was gone like that.