If I’m defriended by someone with whom I’ve had little to no contact with (for instance, just FB friends for networking purposes), then I don’t get hurt and take it personally, I figure they’re just purging their list as I have done also. The only time I’ve been hurt was when I sent a friend request to a longtime classmate, and she friended me along with several of our other longtime classmates. Then shortly afterwards, she defriended me for reasons unknown. I sent her a friend request thinking maybe it was a mistake, but she declined that request. Really weird, because I don’t remember us every having any problems in school, and she’s friends with our other classmates. Then recently, she joined an alumni group that I had started for our classmates! All righty then…. and no, I didn’t allow her to join after that.