 Gilsig has characterized Terri as being emotionally still in high school , and lacking the skills to make her marriage work . She has explained that Terri feels threatened by her husband 's commitment to the glee club , worried that it is pulling him away from her , and will stop at nothing to keep her marriage together . She does not know how long Terri will be featured in the series , as she was initially created simply as an obstacle to come between Will and Emma . 
