ignore person???? What happened, am I bothering anyone

I don't know if its me or what,  I noticed on my ignore list..I happened to stummble into this by mistake... I'm not sure if I hit something... ignore person button or what... but all of a sudden a person would show up on "my account" ... Why down on the bottom it will say "view Ingnore list" when I Clicked on that.. I had a couple people, on the list... 1 person I never was a friend with before...A couple times  I Hit it by mistake.. but I cleared it up with my friends. Now someone I thought was a friend, I noticed now it says, they are totally private...DOES ANYONE KNOW WHAT I"M TALKING ABOUT????? I know I am not ignoring anyone....wondering if anyone has come across this one... lol.. lol