Title is self explanatory, but I am in highschool and pretty much everyone is friends with eachother so why delete your ex? What does it even mean?
Most Helpful Girl
They do not want you on their Friend List to See who they may have Added as a Friend, most likely Girls that you would Not approve of and they don't want any Nonsense from Anything Put... On Newsfeed, simple as That and this is a Fact.
It's Always Best from the Rest to Not even let them on your own Facebook To... Look.
Good luck. xx0