You were sitting in your dorm room when Gwen, your roommate, came in to you and silently lay down on her bed, without even saying hello, and started listening to music with headphones. Lately, she has clearly been out of sorts, and if she used to be a cheerful, sweet, always late girl, now she has become gloomy, tough, and began to snap at others for any reason. And for some reason she started wearing all black, although she used to prefer clothes in lighter tones.