The Role You Were Born to Play

Sue character is unreasonably swing. I even think that she's bipolar. After years, there were many moments that she should have learned things and got to know glee people. But she kept turning back on them and trying to sabotage them as if they had never shared great moments with her. I know that it's kinda sake of creating stories but when it kept recurring like this, I'd say that the producers and the writers were lack of creativity.