it'll get weirder eventually because she actually likes being on the receiving end of that. A lot. She's a bit of a sadist herself, but also a an even bigger masochist and frankly the latter worries Miyamura way more than the former because he's uncomfortable with what she wants him to do to her, like yelling at or hitting her. I'm not making a single word of this up. It's not like this becomes an S&M manga later on or anything, but still.