I can't post this on Facebook but does any one know how to make it possible for one certain person…

When you go to post there is a button that should currently say "public" you click on that and you can choose "people except" when you do that you choose her name. That means everyone will be able to see it but her. You can choose multiple names. But you have to do that every time you post something.

She won't know if you block her, except if she realizes that she can't see when you comment, or tag him in something... it will have the same effect as blocking her, so you might as well just do it.

@bmoreno531, do they have to be on ur friends list to choose them tho??? I'd gladly do it every time lol!

In my pic if you see where you're getting ready to make a post, where there is friends in the blue just click there and you'll be able to change who you want to see your post.

I think they do, but I'm not sure. I've only ever used it with people on my friends list. But my FB is private so if you aren't my friend you can't see anyway.

you can block her from seeing your page by going to setting and click on blocking and then type her facebook name and it will block her permanently

Yes, I think you click FRIENDS EXCEPT before the post and you can click on the friends that you want to see the post.