Why Is League of Legends so addicting?

There’s just something about League that makes it extremely addicting, to the point where even when I’m thinking “No, I’m not having fun at all” I still feel compelled to keep playing. It’s the sort of the feeling you get when you buy a big tub of ice cream from the store, eat half of it, realize you’re full, and then shrug your shoulders and eat the other half anyways.

But you see, that’s not an accurate comparison. Ice cream always tastes good, whereas in League if you start dying a lot you get yelled at by your team, you feel frustrated for playing bad, etc…