How could I be following someone on facebook who I did not hit "follow" for?

[abraXus]

it's not a mistake, you just dont understand how facebook works

here's what happened

you were friends with someone a while back, and then had a falling out, so one of you de-friended the other

but you didnt also unsubscribe from them (they are two different things), so you are still "following" them, but you only get to see their public updates

again, you dont seem to understand how facebook works

when you become someone's friend, you automatically get subscribed to their updates - subscribing is the same thing as following

you dont have to click on a follow button when you become their friend to be following them

get it now?