I guess since there are no men present, they know the women are harpies and petty, but it doesn't mean they want to broadcast it to potential suitors or potential suitors for their children, they do have an image to portray (regardless of how superficial). Rumors are rumors until it is witnessed.
I wonder why most of bullying need to do it on the restroom? Like there’s no other place that more hygine or elegant ╮( ̄▽ ̄)╭ be creative pls, bullies