*Update*
I've actually been to the Google Play Store and pulled up the Facebook App to see what and if others had the same issue. Numerous and I mean numerous complaints about this same situation are popping up starting around the same time I started having this problem so it's not a phone issue but unfortunately an app issue. I'm hoping that Facebook will either address this soon or it will begin to lose people because there has been so much weirdness surrounding this app lately. I mean the total invasion of privacy, etc. is beginning to be totally absurd and the way it controls things on your phone it acts like a bot or malware perhaps? I'm going to try deleting each unwanted over 500 contacts one by one smh....but I thank you for the help guys. Btw, sync is NOT , I repeat, NOT selected in Facebook in my Facebook app. That's what makes this even worse, I don't have any choice in the matter. I have NOT selected that I want my Facebook contacts synchronized with my phone book because I don't want all of those people, many of whom I don't associate with at all, to be staring me in the face every time I open my contacts list. Yet, Facebook chose to do this anyway, so it seems, according to the numerous complaints at the app store. Go fig..