Locked Out

Jemma (Jem) Rogers sat rigidly on her bed.
"It's happening again!" She thought angrily, while not helping listen to the high pitched voice of her roomate. Jem's nightly schedule was just that, a schedule. No surprises, yet each night was just as annoying as the last. First the phone calls, then the music, then the singing (bad singing to clarify), and then more phone calls.
LSSA, a 2-week academy for highschooler's at TLU, was Jem's first taste of college, and the classes were fine, the food was decent, but the rooming situation wasn't working.

Amy didn't seem so bad at first. When they met the first day of LSSA, she was more than friendly, offering the snacks she brought with her to Jemma, and even helping Jem move the heavy desk that was for some reason in the girls' closet.
After dinner, and immediately following Jemma's shower, Amy began her nightly routine.
"I have to make a quick call every night, is that okay?" Amy had asked.
"Yeah sure, no problem." What was one quick phonecall, right?
That "quick call" ended up being a 3 hour conversation, most of the language consisting of exchanging "I miss you" and "No, I miss you more." By then it was around 1:00pm, and Jem wanted sleep desperately. "Please phone, die! die!" She prayed, hoping that Amy's phone would miraculously split into a million pieces. It didn't, the phone seemed to be immortal.
Next up was the singing. The bad singing.
"Isn't there a rule against this?" Jem wondered, as she listened to Amy's terrifying voice running loose in the shower. The girl had no inhibitions, she just sang, not seeming to care that it was 2 a.m. After a while, Amy finally got into bed, and Jem sighed in relief. Sleep! Hallelujiah!
Well... that relief didn't last long because Amy needed music to sleep. She conviniently left her headphones at home, so Jem had to fall asleep to weird rap music.

This had happened every night, and Jem was ready to strangle her roommate. Amy had gone to the Room of Requirement to get on Facebook, and wasn't due back for about 15 minutes. Jem tried to calm herself down when she looked at her roommates messy side of the room. That's when she saw something beautiful. Amy's room key.