There are some indicators by which you can know if someone unfriended you on Facebook or not. How to see who unfriended you on Facebook? Read below to know more:1. Go to your friend list and search for the person. If the person unfriended you can not search for them in your friend list.2. See the profile of the person. If you see the “Add Friend” option under the profile that indicates that you get unfriended by the person.