The majority of women posting the photos said they
did so after falling out with their friends, while
nearly a third said they were taking revenge on people
who had done the same to them.
1. fall out：争吵；松掉；解散；掉队；结果；退出
Example:They often fall out over trivial matters.他们常因小事争吵。
Example:They vowed revenge on their enemies.他们发誓要向敌人报仇。
Example:The majority of people seem to prefer TV to radio.多数人喜欢电视胜过广播。