So let’s go with the general concept: The class have been taken in by Lila, following her like she’s hung the moon and believing her lies about Marinette being a “bully”. Adrien does nothing to help. And all of her now former friends completely neglect to notice all the ways Marinette has been going well out of her way to help them, both as a friend AND as the Class Rep.
Then eventually, under Lila’s manipulations, the class figures that since Lila is so awesome, she could do a much more amazing job as the Class Rep than Marinette. She could call in favors to set up awesome trips, bring in celebrities she knows for little Q and A sessions, and use her great skills to set up great events like the school dance! Surely anything she is involved in would be a hundred times better than what Marinette could come up with! Ignoring, of course, that Lila doesn’t HAVE to be the Class Rep to actually help in any of those things, but salt fics in general and even the show itself as a whole haven’t exactly shown the classmates to be smart unless they specifically are needed to be for one reason or another.
Thus the class demand from Ms. Bustier that they do a new vote for Class Rep. And of course the rest of the class insists they want it to be Lila.
Lila of course gasps and puts on an act of being surprised and completely unaware they were planning this, how wonderful they are to consider her for such an important role, and while making less than subtle jabs at Marinette in any number of ways (her “bullying”, her “inability to handle the role”, etc). All while sending secret smirks at Marinette when she thinks no one is looking.
Contrary to everyone’s expectations, Marinette doesn’t get upset. She doesn’t get mad or despondent. She’s not even hurt. Instead, she smiles.
Lila thinks she’s trying to hide the pain. The class is uncertain. Adrien is worried. All of them were thinking Marinette would respond quite poorly to being ousted from her position.
In actuality, Marinette just had a whole lot of weight taken off her shoulders.
It is either at this point or the next day that Marinette drops the bombshells. All of them. At once. In the form of a multitude of papers and documents on Lila’s desk.
These papers include a booklet of all of the Class Rep’s responsibilities, including regular daily/weekly meetings, tasks, duties, assignments, and of particular note: the process to go about arranging any of the number of things the class was wanting Lila to do. They also include forms. Forms upon forms. Some in triplicate. All empty and requiring Lila to fill them out.
Field trips? School dance? Any special events? They have to be requested and approved by the school board. And each one has to have a set budget and detailed plan prearranged before they will be approved. Meaning the Class Rep’s job is to contact the places, get the dates and times for reservations as well as the cost, and ensure safety and adequate personnel to man the events.
Not only that, but these events cost money. Money that the school has no reason or desire to shell out. So that requires student-planned and operated fundraisers. Which also require planning, locations and times for the fundraiser to be run, details of what they’re intending to do to earn money, forms to fill out, and a request to the school board for permission to do.
While Marinette had been the Class Rep, she’d already had all of this planned out to a T. The necessary fundraisers. School trips. The school dance. Even entertainment for the dance, which was a shame, since she had made arrangements for Jagged to come play the music for the night. The documents had been filled out, signed, and every line dotted. The only thing left to do had been to go to the school board and convince them…requiring a meeting with all parties that had to be scheduled and conveniently enough, had actually been arranged for that very week.
And no, Lila isn’t going to get by on Marinette’s plans.
Since Lila and the class insisted the liar already had better plans lined up than anything Marinette could come up with, Marinette happily steps aside and tells her to go for it.
In fact, she has such faith in Lila’s abilities, she’s going to step aside and let her shine. By taking all the arrangements she’d made for the class and cancelling every single one of them. So she starts calling people, all the different groups and agencies and businesses involved in these plans to apologize and retract her reservations. Maybe even going so far as to do so in front of the class as proof.
The high end hotels she had already made reservations with? Cancelled.
The popular museums and tourist sites she’d reached out to? Cancelled.
The transportation needed to get to those places? Cancelled.
The caterer she had been working with to set up food for the dance? Cancelled.
Then she calls up Jagged, on a video call in front of the entire class, apologizes for wasting his time, and cancels his appearance at the dance.
Oh, and the fundraisers? They were all going to be bake sales. With contributions from the Dupain-Cheng bakery to be used as products FOR FREE. So the kids running the fundraiser would have gotten a net profit automatically since it IS Marinette’s parents’ bakery. But since Marinette isn’t the Class Rep anymore, she doesn’t have to run it or work out any special arrangements with her parents to get the goodies to sell off (which she reminds the class would be at a loss to her parents, no less). And no, Tom and Sabine aren’t going to extend Lila the same deal.
And let’s not forget, there are the forms that Lila has to fill out to get permission for any of it. The multi-paged, mind-numbingly evil forms that no normal person can make sense of. And she has to fill out ALL of them.
All are things she had worked out ahead of time. All were needed to arrange any of the special events the class wanted. Now Lila is going to have to do it all herself, and no, Marinette isn’t going to help her with any of it.
Because, after all, they said themselves that whatever she’d planned won’t be nearly as great as what Lila can come up with.
So Marinette sets the pile on a paling Lila’s desk, cheerfully tells her that from here, it’s all Lila. And proceeds to thank Lila for taking the job off her hands since now that she’s no longer the Class Rep, she’ll have more time to finish her commissions and devote to her gaming.
“Thanks, Lila! I couldn’t have asked for a better replacement.”