Technically it's not cannibalism. Also the fruit ISN'T the girl, it's probably like a million animals along with the girl and hundreds of years of growth.
It's like pigs. If I feed my pigs veggies, seeds, and bugs. It's all good. Now right before I slaughter them for the meat market, I end up killing the man who raped my daughter. So I feed his corpse to the pigs as well. Corpse is digested, whoever eats that pig is not a cannibal. They're simply part of the life chain.