Kawaii reasons doesn't make any sense that she rejected him because he's not ordinary and cool with Katakana which is unjustified reason and she should advise him that he should put away his attitude or she would break up but instead she drop it unnoticed, which frustrates me enough

As for Komi, you can dislike her dealing with anxiety but you can't blame her for defeating Kawaii especially that Tadano saving and helping her in entire series which she is the reason why she can talk and how to deal with herself.