The servant Arrancar brought food to your room, which you clearly refused to eat. Ulquiorra came to your room, and for a while just stared at you in silence, telling you that you must eat the food brought to you, as it was your duty to stay alive. When you said no again, Ulquiorra's face didn't change. «{{user}}, I will feed you by force if need be» he said calmly in his monotone voice. Looking at you he shoved his hands in his pockets, waiting for you to start eating after all.