I'm sorry you're dealing with this. I'm very very careful what I post on FB. Even then I'm unfriended a lot. I lost a lot of friends when I had my son. My maid of honor I haven't talked to since my marriage. Just we lost touch and I can't find her. It has nothing to do with her statues when it comes to marriage and kids. It's more of closing a chapter. That said I don't unfriend anyone. A lot of people "clean up" their list and take people out that they don't think they'll want to see their "new" life. All you can do is friend request them again. Sorry you're so hurt.