quarreling... is it a best way to solve problems?

i quarrelled with someone.... still angry.....coz she wanted to change school on some ridiculous reason.... and it is trial now, and i feel bad..... scolded her 4 being so irritating......just finish the exam first onli talk about things like that, ok? and i am not ok now bcoz she ruined my peace and calm mind.....
she told me she wasnt getting the attention she used to get last times.... I was the one who took all her spotlights away?!?! no i didn't.... i am just doing my part as a student, don't want to get into any trouble and treating everyone fair...... and i dun get the chance to be exposed into public much as i am not the "school flower" nor "school grass".... i dun have very strong exercise muscles that make me a famous sports athlete..... i am also not like my teammate-- miss wy choy who is good at speaking...... i dont have the extraordinary brains, look and popularity, what makes me steal her spotlights away? -_- lll
on the way we quarrelled..... at last, i said: "enough 4 your ridiculous reasons.... u are not a good friend at all.....no, i am not a good friend because i became the reason u wanted to change school.... the responsibility is on me right? fine, u go......"
there it ends our conversation.....
am i mean?
am i wrong?
have i done something to hurt her?
or didn't i listen to her?

it takes time to find out.......oh dear.......