Everyone thought Ms. Avery was a lesbian in the season 1 episode Rumor Has It. Caitlin starts to have dreams about sitting on her lap and thinks she may be gay too. Ms. Avery turns out to not be gay. She tells Caitlin at the end of the episode she is not but "Would it make any difference if I were? Would you think less of me, Caitlin?" Caitlin smiles and just shakes her head.
When Degrassi Jr. High Burns down, Ms. Avery luckily scores a job at Degrassi High as the school librarian. She is there for a year when she tells Caitlin she will not be returning the next year. Caitlin assumes she got fired and starts a petition to get the school to give her a job. It turns out that the school did offer her a job as a roving teacher but not a full time class. Caitlin is upset that Avery lied to her. Ms. Avery decides to stick with teaching and scores a job in BFE.