Lucy, the girl wearing glasses, is an awkward shut-in who got berated and abandoned by her previous roommate.
Billie is a former cheerleader and used to rub it in everyone's faces. Moving in, she seems intimidating to Lucy, who is afraid she'll be like her previous roommate.
Lucy tries to be helpful and welcoming, without realizing she's being overbearing.
The letters are loose on the uniform because Billie's crazy RA removed the letters until she got her roommate agreement. The psycho RA gets a crush on her and fixes the uniform. They're dating now, for some reason, so Billie moved dorms after Ruth almost got fired for dating one of the girls on her floor. She misses her already.