Sandee made a great point in another thread about alot of Sm's in here griping about BM and Facebook.
If you have issues with BM/BD/SM/SF-then DELETE AND BLOCK!!! There's no reason for ya'll to be friends if you can't get along.
In my situation-BM is on my facebook-we play a few games together. We share pictures of the kids. She rarely posts actual status on her page and she's "hidden" from several of my posts.
Yes people-you can post shit without BM seeing it!
Point is, if you guys have issues-avoid each other. That includes FB, you're all adults. Act like it!