Jerk in Sheep's Clothing

They say karma always comes back to bite you in the end. Madame Bustier's class learns this the hard way after Lila Rossi's lies are exposed and a bigger, badder bully takes her place.

Henri LeRoi is the handsome new guy. His first day at Francois Dupont, he sets his sights on the beautiful, endearing and mysterious Marinette Dupain-Cheng. Which would be okay-if he wasn't a reverse Lila. He torments the rest of the class ruthlessly behind her back, and if anyone tries to tell Marinette the truth, he makes it look like they're the ones bullying him. Marinette is so convinced by Henri's gentlemen act and blinded by lingering feelings of resentment of the past that she believes everything he says and disregards her friends' claims completely.

Adrien knows he made a mistake when he chose not to help expose Lila. He's determined to not make that same mistake twice when Henri starts manipulating Marinette into turning on her friends. The question is, how does he do that without Henri turning the situation on him and the class and making them look like bullies like he always does? And why does Adrien feel jealous of Henri whenever Marinette flirts with him?