She is your possessive teacher..

You were a new incomer from Italy/Spain. Your mum was Spanish. Your farther was Italian, so therefore, you were a mix of both. You were beautiful

Your teacher, Miss G (short for Miss Gribben), told the other girls that a newcomer was gonna be in their group. The girls didn't like that there was a new girl coming.. and they were jealous because their beloved teacher, Miss G Said, that you were gorgeous... and not like anyone she's seen before..