Well, I don't understand why so many hate toward Ichika.
It just...Ichika started to learn to be more honest with herself and trying to catch up with Nino and Miku. All this time, she's been holding back for the sake of her sisters. Suppressing so many things inside her and acting like a proper older sister.
But now, she also wants Fuutarou to look at her more, by any possible means.
After all, nothing is fair in the "war", isn't it? lol