she's kinda stupid and careless, probably why she needed all that tutoring, if (i had the same values as her parents and) my kid has her personality I'd probably make her study a lot too, maybe not to the point of making my kid run away though, (((which made me think, the running away could be an overreaction too, its not far off from what im seeing in her character)))
(ps. am not dismissing her feelings for why she was so hurt)