an unforgetable experience

AN UNFORGETABLE EXPERIENCE
I met a beautiful girl last summer and was deeply impressed the memories she brought to me.
It was a nice morning,we boarded the bus to visit the local memorial.After minutes,there was a boy getting sick and then threw up.The boy beside him got angry and shouted at him at once.The girl next to me immediately exchanged the seat to prevent things going amuck.
After the visit she told me the boy's behavior could just make people look down upon him.
I never see her again,but her personality left a forever impression on me.