Man no way she just likes him as a friend
I mean, that’s very obvious brother but it’s more like she’s not aware of her own feelings for him yet. She keeps rejecting them hard because she herself is having a hard time trying to understand them.
Don’t get me wrong, she genuinely cares about him as a friend but she’s had a tough time making friends so it’s sorta hard for her to think “oh, I actually don’t think of this guy as
just a friend” because she’s never gone that far before.
The author has also been focusing more on her feelings ever since MC realized his feelings for her. This means that she is on her way to realise something and in my opinion, from now on she will keep having these small moments that make her conscious of him as a guy. The final nail in the coffin might be if MC tries of help Hebikawa and they get close again, and this triggers her “oh no, I like him” event