You can't become physically addicted to weed... psychologically? Yes. You can also become psychologically addicted to sniffing moth bolls. You can become psychologically addicted to nearly anything.
edit: on 4/20 I had a bowl loaded in my bong and never got around to smoking it... I smoked some heavy CBD hemp with my pipe instead. I only smoke when my bff offers me a few tokes now... or if it's stuff i grew myself. I can't grow at the moment, as I have vacations to go on and I don't trust anyone with meh plants.
edit: on 4/20 I had a bowl loaded in my bong and never got around to smoking it... I smoked some heavy CBD hemp with my pipe instead. I only smoke when my bff offers me a few tokes now... or if it's stuff i grew myself. I can't grow at the moment, as I have vacations to go on and I don't trust anyone with meh plants.