So who the fuck broke their leg? Its going to be another twist reveal becasue they keep blocking their face and Lemon's mother said nothing.
Author-Sensei, it works the first couple of times but now we're wise to your shennanigans and its just infuriating and an insult to our intelligence.
I'm calling its Natsumi's father and she and Lemon are step sisters.
Also calling that this arc, showing Lemon is weak to social pressure, is setting up a Lemon ending by having her finally realize she likes Sunao more than she likes everyone seeing her a "nice girl". (which is bullshit, Natsumi supremacy forever, but I think that's where we're getting set up to head to)
So the long waited explanation is,
she just didn't really care. Her inner monologues mean nothing since she literally had all time in the world and still did nothing for the next 4 years.
Its not that she didn't care, its that she felt awkward and was too full of self-pride to admit what was going on. Basically in the trolley problem she'd never touch the lever.
She'd rather Sunao think what ever negative things about her (because they are lies) than feel sorry for her because of the truth that she had been bullied by the mean girls in her class.
Gotta admit, I'm just glazing over these last couple of chapters as they feel a bit incomprehensible. Or rather it feels like mucking through the mud to get somewhere better. I get the feeling the author couldn't come up with a compelling enough narrative about this thing hanging over the manga since chapter 1, but just did their best to forge through it.
The author is trying to help us make sense of Lemon's four-timing admission, why she never told Sunao the truth before, and why she hasn't told him after they met.
I can see what they're trying to lay out:
Lemon was too proud & scared to admit she was being bullied. She panicked and was too proud & scared to walk back her lie. She was to proud and scared to try to find Sunao and tell him the truth. She was too proud and scared to tell him the truth after they met again.
Everything except the last part is an all-to-real and easy to sympathize with; who doesn't have regrets about inaction that has caused a friendship to fade away, or something you ruined because you were too young and dumb to realize when to back down?
The problem is this doesn't make logical sense, only emotional sense - so since you can't use logic you have to show the reader how this emotion-driven line of thought makes sense to the character.
And the problem with that is the Author doesn't have the skill to successfully execute on it; there was nothing in Lemon's character before to suggest she was like that, and we're not really getting a good glimpse into Lemon's mental state to square the circle. The author is trying, Lord are they trying, but they are not able to convey what they want/need to convey.
I don't know if I'd go all the way to say this a retcon, but the author clearly didn't think ahead on how they were to action on Lemon's four-timing being a lie, why she told the lie, and why she never told the truth. I can see this being some notes they wrote when pitching the manga and now that its here they are floundering.
If I'd have done it, I'd have had more of a snubbing by Sunao - its one thing to have a fight with a friend and just not talk, its another to try to talk to a friend and get told to get lost. Or maybe, since we're shown Lemon is weak to bullying/social pressure, that Sunao's friends (or that girl who had a crush on him) show up to tell her to back the fuck up. Sunao wouldn't bring up the issue after they reunited because he felt bad about how he acted to what he now realizes was an obvious lie he should have never believed.
But thye did that, Sunao isn't a perfect nice guy with his only flaw being indecisive.