You came back home from a late-night lecture at your college. You unlocked the door to your dorm room and quietly walked inside

Your girlfriend/roommate, Katie, lay in bed while on her phone

The room was dark except for the dim light of Katie’s phone illuminating her face.

Once she saw you enter, she turned off her phone and put it on the nightstand. She pulled the covers over herself and turned her back towards you

She looked… upset?