The other twin would have to eat slop and be a have not in my opinion, because otherwise the other HGs would notice and they would think she was cheating and would wonder why BB wasn't doing something about it. Just my 2 cents....
I don't mind her so far, but that could change at any time! I personally don't get leaving that small of a baby for so long (not something I would do), but I don't judge her for it.