The eve of her high school graduation, Pauline cuts off most of her hair, as part of a personal pledge to stop focusing on the past; it looks BAD. But...
"I finally made a choice by myself only for myself...so I can't bring myself to hate it !"
the guy she liked at 13 told her, without really meaning anything, that she looked "cute and sporty" the first time she wore her hair in a pony tail and she's worn her hair up almost every day since.