I'd like to take this moment to thank my mother, for raising me to be sort of person who'll take Kendo because I want to. Not because I'm obsessing over one of its students
Seriously though, Katie's stalkerish behavior towards Tomohiro is creepy.
Tomohiro isn't exactly Prince Charming either, off the top of my head I can name five people from my Kendo class who are way more awesome than the story's Sexy Mysterious Badass #1.
But maybe that's because I've never found assholish behavior appealing.