Trick to Check Who Un-Friended You on Facebook

• First of all Enable Timeline Feature in your Facebook Account.
• Now open your profile and click on the year in which you want see the people who unfriended you.

• Scroll down the cursor till you find Friends column where you wil see list of new friends you made in that particular year. Like in this screenshot you can see I Made 32 New friends.

• Click on it and all your friends will be shown in a new  pop-up window and if you find Add as Friend option next to any person it means he has un-friended you.

You can check all the years one by one to find out how many of your friends have un-friended you.