First, you have to log in Facebook:
And then, click here and go to Blocking tab:
Choose Block User ~> User name (Molie Handley) ~> Unblock:
The fight is over. You hated each other, but now it is time to let each other back into your online lives. Fortunately, unblocking people on Facebook is just a matter of a few keystrokes. If only repairing all your friendships were so easy. See Step 1 below to learn how.
Step 1, Login to Facebook. After you are logged in, click the down arrow icon button (▼) next to the Security button in the upper-right corner of the Facebook toolbar.
Step 2, Click Settings. This will open the Facebook Settings page.
Step 3, Click the Blocking option in the left menu. This will change the page to show all of your blocking controls.
Step 4, Find your list of blocked users. In the Block users section you will see a list of people you have blocked. Unblock them by clicking the blue Unblock link next to their name. A message will appear asking you to confirm that you want to unblock this user.
Step 5, Unblock apps. Besides blocking someone, you may have blocked messages from certain apps in the past. you can unblock these apps from the same page. Find the list of blocked apps in the Block apps section. You will unblock them by clicking the Unblock links next to their name.