Not sure if this is only me but this girl and the girl from "The danger in my heart" in the early chapters give me the same unpleasant feeling, I can't really say why but I have a feel theories:
1. They are both kind of forceful at pushing the MC, like I know that they're doing that from the good of their hearts but I can't help getting a bit angry-ish? Everytime they do that.
2. I might just be wrong about this one but to me, I feel that both of them don't regard much for the MCs' feeling and instead just dragging the MCs along to their own feelings. The FMC from "The danger in my heart" does finally recognise MC's feeling and considers his feeling before she does something later on, and that is when I can finally enjoy the manga without having a slight bitter taste in my mouth.
3. This one is almost the same with the previous point but I keep feeling that they always see themselves as correct and don't realise until much later on that something they did might have unknowingly hurt the MCs.
This is just my personal opinions though, I have a few more points but they're kinda hard to describe so I won't list them, tell me what you think of my opinions and do you feel similiar or different.
Edit: To make things clear so that no one misunderstand, there are things that I don't like about MCs of both series too, it's just that other than being too hard-headed, the other points that I don't like about them is not as much as there are with the FMCs of both series.