Sue Sylvester: The Inconsistent Villain.

For any strong protagonist, there is often an equally strong antagonist. For Glee, the antagonist was
Sue Sylvester, cheerleading coach and hater of all things show choir. However her feelings towards the New Directions aren't exactly consistent which serves as a source of confusion.

Originally she was a character with a lot of great zingers, a villain we loved-to-hate but also still kinda loved regardless. She was impetuous and brash in her ongoing hatred of the Glee club (but I can't really remember if a substantial reason was given for such hatred?) as she perpetually seemed to attempt to take the club down and insult the various members within it personally.
But maybe that didn't matter - we had our antagonist... for a while.

As soon as the Glee club got to Regionals and lost she stepped in to share funding with them (under the ruse of "what would I do if I didn't have you to hate?" which makes all of her previous motives seem kinda pointless), she votes for New Directions and therefore openly recognises some support for them and later forms some sort of truce with Will but then, not too long after, coaches a rival team to try and beat them. She creates the 'League of Doom' to try and take the Glee club down in season two as if to suggest that the Glee truce is now gone. Sue will viciously verbally attack students, and later hold an anti-bullying stance. Sue is revealed to be pregnant, but has the baby off screen. The child is mentioned once or twice after birth and then never mentioned again with no evidence of post-natal weight or maternity leave. This seems to show lazy writing as a way to spice up the plot, something pregnancy is often used for on TV to pick up ratings, which they then never follow through on. She'll go from hating them and stealing their gifts as a Grinch-like being to giving them everything back. Then hating them, then giving Marley and her family money in the Glee, Actually episode. I'm not sure about you but this emotional yo-yo of morality is making my head spin.

From her opinions on the New Directions, to her motives and personal life, Sue is the embodiment of inconsistency and the fault lies with the writers who have knocked this once promising character all over the place. Sure, we can feel sympathy for the villains. Sure, they can change their mind... but Sue's back-and-forth antics are tiring and render her character confusing and unrealistic.

This just shows one of many inconsistent characters and shows how each character is merely a tool for the writers to explore ridiculous plots and themes from a rotating band of writers with different, conflicting ideas. It's lazy, messy screen writing posing under the guise of creating a character with depth and emotion. Really, Ryan Murphy... I'm sure you can do better than that.