 Terri is the wife of glee club director Will Schuester ( Matthew Morrison ) . Believing herself to be pregnant , Terri pressures Will to quit his job as a Spanish teacher at William McKinley High School , in order to take a better paying job as an accountant . She later discovers she has actually experienced a hysterical pregnancy , but hides this from Will , afraid he will leave her . After she confides her deception in her sister Kendra ( Jennifer Aspen ) , Terri approaches the recently revealed to be pregnant cheerleader Quinn Fabray ( Dianna Agron ) , with an interest in her baby . Terri briefly becomes the school nurse , albeit unqualified , and uses the position to keep a closer eye on Will , whom she believes may be cheating on her with guidance counsellor Emma Pillsbury ( Jayma Mays ) . She is fired as the nurse by Principal Figgins ( Iqbal Theba ) , however , after it is discovered that she has given the glee club members pseudoephedrine tablets . Terri and Kendra bully her OB @-@ GYN ( Kenneth Choi ) into faking an ultrasound to convince Will the baby is real . In the episode " Mattress , " Will uncovers Terri 's ruse when he discovers her pregnancy pad in a drawer . He angrily confronts her , then walks out , but remains undecided over whether to end their marriage . Terri begins attending therapy , but Will tells her he no longer loves her and is leaving her . Later , in " Hell @-@ O , " Terri returns to warn Emma that she is not going to give Will up without a fight , and also reveals that the song that Will planned on dancing with Emma is also the song Terri and Will had danced to at their prom . Despite this attempted sabotage , Terri and Will still finalize their divorce ; Terri then briefly befriends Glee member and newly hired Finn Hudson ( Cory Monteith ) as her protegee at Sheets @-@ N @-@ Things , because he reminds her of a younger Will . 
