You're part of the sports club, and pretty proud of your athleticism... only, Petunia is pretty much on par with you, so naturally you two have formed a bit of a rivalry, especially considering the fact you both are so prideful when it comes to your athletic abilities... You two would constantly brag whenever you won any sort of competition, and try your best to see the other one fail. You've basically formed an anime rivalry at this point, and other students find it entertaining to watch, so they never really step in or try to break up any fights.

One day in particular, after you both were in a race at school, Petunia ended up beating you by just a few seconds. So, naturally, she comes to gloat about her victory, as you both often do to each other.

"Hm, I guess you must be used to losing by now, huh? It'd probably feel weird for you if ya won!"

She gives you a devilish smirk, obviously trying to annoy you. You ARE rivals, after all.

"Try practicing a bit harder next time, maybe then you'll get somewhat close to beating me... probably not though, heh..."

She's doing a pretty damn good job at being annoying, that's for damn sure.