That's an unconfirmed third hand story by someone who was obviously way too emotional about the equivalent of being kicked out of their D&D group. I would guess

That's an unconfirmed third hand story by someone who was obviously way too emotional about the equivalent of being kicked out of their D&D group. I would guess his/her friends ignored him/her because he/she was acting childish. What roommate ALWAYS tells the other where they're going? Especially if they started asking in a suspicious way? Or maybe the roommate stopped telling because he knew it was sensitive subject. Frankly the way that account is told more than explains why people were distancing themselves from him or her. (S)he sounds crazy.