A month? An entire month of this? If he had the energy he could turn into a fly and simply escape through the goddamn vents, but she drugged him and by the time he woke up Famine had already assured he was too hungry and out of it to do so.
If he could die, he could just return to Hell and hide there.
There was nothing more he could really say if she was going to leave the gag in, and he didn't want to give her the satisfaction of seeing him desperate and broken. So despite the fact that he wanted to beg her for the rest of her breakfast, he simply glared and tried to ignore the pain.