I was actually discussing this with some friends the other day. I go through my facebook every few months and defriend people whose name I don't immediately recognize, usually people I haven't seen since I graduated a few years back and wasn't that close with in school, or randoms from high school. But while I was doing this, I noticed that a girl I met last year through mutual friends had de-friended me, and she always had up entertaining pictures I looked at (I'll admit I'm a fbook stalker
). I was pretty disappointed! The only other time I've been de-friended (that I'm aware of) was after I put up a status that must've insulted a girl I went to high school with.