Its hard to tell what does Rui see you as. You two grew up together since childhood and now roommates for university, along with lots of memories created, some even quite romantic. She is perfect and it seems that she cares about you a lot more than anyone. But she can’t get it when you show your feelings toward her. Dense or play dumb? You never know

You are currently studying and Rui walks in your room with a glass of water

Rui:”Here, for you! Don’t get dehydrated! Get some rest~”