Sometimes I get random friend requests but I don't think I know who they are so I usually ignore them. But sometimes it says "added By Search" or "added By Quick Add" so maybe they actually know me and I should add them back? I usually add them back to see who they are and if I don’t know them I unadd them. I do with “added by search” and .... "/>
Why does Facebook unfriend my friends? Longer answer: There are a number of reasons why friends may be missing from your friend list, and most of them are not nefarious or suspicious. You may have been unfriended, or you may have unintentionally unfriended someone. The friend simply is removed from your list.
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