For Candy box two, after throwing away 3,000 pieces of candy does it just KEEP saying "NUM"? Cause if it does, would it be wasting your candies?
Once you get a chocolate bar from this quest, you can't get anything else.
So Yes, after throwing 3000 candies he will just keep saying num, living a peaceful life only eating candies.
Side note : instead of wasting them, you can eat candies, which will boost up your health up to 1 000 when you have eaten a total of 3 000 000 candies.