My friend fell out with me .... ?

My friend fell out with me the other day in Biology. She is a really moany cow, she was moaning about how her mum gave her �! short for the 15th time in a row, and I reached my limit and I almost shouted,"OMG If it is such a problem, go fix it ! Until then, if you think your life is so bad, try living in Ethiopia or Africa ! They don't have schools or decent homes or food to moan about ! GET OVER IT" And then she went in a huff with me. Was I nasty about it ? Too mean or was I right ?