A.T.
Your ex should not be able to see your stuff unless you post it to your kids facebook. Unless you are friends with your kids and your ex, he cannot see your stuff. He cannot go to her facebook, through his facebook and see your facebook, unless you post something on your kids facebook, which gives permission to your kids to see what you have posted, then he will be able to see it because you all share that commonground. He also cannot see your facebook, unless you give him permission to. He can however, view your facebook if he goes on as one of your children, because they have permission to view your facebook. So if they are at his house and your kids are on, he can take a peek as one of the children. It does bite you in the butt so be careful. Hopefully I did not confuse you.