Originally Posted by BrigidsDaughter
You can also ask your friends to change the privacy settings of posts you make on their account to not be visible to the public, not show up on their feed, etc. Change our own fb privacy settings to only friends, not friends of friends, etc. Make sure she is blocked too. Then she won't be able to see anything you post and vice versa.
It sounds as if these "friends" are letting the ex use their profiles to look at the OP's. If he were to elaborate in that, then cool.
The situation is hopeless, but not serious.
Reality is too complex to be spread all over the world.