If you have actually obstructed someone mistakenly or changed your mind about the block, though, it is also reversible. You can alter your Personal privacy settings to unclog and enable someone back into your Facebook world.
How Do You Unblock A Friend On Facebook
1. Click the down arrow next to "Account" at the leading right of any page on Facebook.
2. Click "Personal Privacy Preferences" from the Account menu.
3. Click the "Edit Your Lists" link under the Block Lists heading. It is at the bottom center of the page.
4. Click the "Unblock" link beside the name of the person you wish to unblock. A list of the people you've obstructed is discovered under the Block Users section.
Idea
Unblocking someone does not automatically put that individual back in your pal list. You must add the recently unblocked individual as a good friend and wait for them to validate the request.
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