Boyfriend wants to try weed

vera

I’ve been with my boyfriend for almost 4 years. He just asked me if I’d be upset if he did weed. (It’s not a common thing where we live- it’s illegal here and random drug tests are common). I said I’d rather he did it at home but wouldn’t be upset. Then he asked if it’s ok if it turns into a once every 3 months thing. I said I’d rather it didn’t and I don’t understand the need, but also acknowledged that it’s his body, and he can make his own decisions.

I grew up with a sheltered life so I’ve never done any drugs, and my boyfriend hasn’t done drugs in the almost 4 years we’ve been together. Though he’s done weed a couple of times before that and said he “loved it”. I don’t know if I’m being unreasonable with my opinion- but he seems really disappointed with what I said. Can I please get some advice on this? I think I just worry he will turn into a stoner and that’s not something I’m interested in. He said he won’t- but then I don’t think anyone intends on being a stoner. Any advice is appreciated!