Personally I thought weed was very addictive, but not in the traditional sense.
Take coffee for instance. When I stopped drinking coffee I had headaches, was a dick for a few days, but that's it. Which is pretty easy compared to, say, heroin (so I hear).
With weed, I didn't have any of that, but I craved the relaxation it brought. The feeling of not giving a fuck about anything for a few hours was great, and I longed for it. I still long for it sometimes. And I think that's the dangerous thing about weed being labeled as "non-addictive."
Just because you don't have a physical reaction to abstaining, doesn't mean the emotional reliance is nothing.
I feel exactly the same way. Much less of a physical addiction for me. For a long time I was in the "not addictive" camp, but realized that there was a reason that I was resistant to stopping. I'll still partake, but I'm more mindful about recognizing when its becoming a dependance issue again.
That's pretty much a habit, I also get uncomfortable when I have to go out when I always have that day free. Peanut butter cups might not be a good example because the sugar is really bad for humans.