Pretty much the typical FL oblivious of MLs obvious displays of affection however I wont necessarily label her as someone dumb as she can handle and solve things well outside of romance
No, to me this must be deliberate. Like the author forces them to appear clueless. No sane person is this clueless. Unless you are an innocent child.
I dont think you have ever been in the situation where it's hard to even belive that someone who is so capable, supporting and overall amazing is into you like that....and also the self doubt if you are even worthy of such a thing....so being friends is the max your relation ship can go with them....it's not just the fact that this character is an airhead but also the fact that this character also has very low opinion of herself....she literally thought that no one would be sad to see her die...that's how low she thought her value was not because she was treated so no but because she couldn't see it herself. And honestly noone outright said it....and with people like her you need to outright say it....
For reference I am someone like her...not to that degree but I do understand.
I read chapter 2. She dumb? He proposed to her. Went on his knees, kissed her hand and vowed the vows of marriage proposal to her. And she doesn't even have an inch of a suspicion? I get it if people have suspicion and write it off cause they lack the evidence so they don't want to believe it before they truly know know. I am like that, too. Learned the hard way as well. But like....???ლ(´ڡ`ლ)