User blog comment:LabRatsGirl57/Theories??/@comment-25203954-20150907223430/@comment-26014635-20150907231946

We know for sure that Bree graduated, actually. Between "Bionic Houseparty" and "First Day of Bionic Academy." In the former, we see Bree's prom dress, and Chase says that she probably wasn't going to use it. In the latter, Bree says that a boy stood her up on prom night.