Kanako's feelings towards the MC are "understandable", as she is playing second fiddle to the guy who sniffed her crush's gym uniform. I can imagine it being utterly humiliating knowing that the guy who you devoted at least 3 years of your life into making him lower than dirt is the ultimate winner in the Chisaki bowl. She knows she's unreasonable, that's why she tried to bond with him. However, her unrequited love still makes her hate him. She's such a fascinating character.