I kept a beehive in with my plants for years, I have a friend that has done the same for years(until just recently when his house burnt down) and I've never noticed the bees taking any interest in the females or males, although as soon as the flowers on the males open I harvest the pollen and cull them to avoid mass pollination.
Cannabis is wind-pollinated so I kind of doubt that bees have any evolutionary reason to be attracted to it, certainly not the females as they have nothing to offer bees, Males maybe, but cannabis in general, doesn't have any need for bees for reproduction.
I have noticed a weird phenomenon of finding dead bees just laying on the leaves of my plants and so has my friend who is also a beekeeper. My friend and I have talked about finding dead bees every year in our plants and haven't come up with a logical explanation for it. Neither of us uses chemicals on our grows, we don't use insecticide of any kind, not even neem, in part because we keep bees. It's a mystery to me and the best explanation we've come up with, although it sounds a bit hippie, is that all bees die eventually perhaps our pot plants simply present them with a more comforting place to die than others. I dunno.