more like heads up zealot, get new friends.
i would do the same thing. i'm not going to conceal the fact that my friend did something dumb and wrong because he's my friend. wouldn't care what he'd think of me afterwards, i don't want to have to do with people who do stuff like this.
go google the term 'loyalty'
if you arent loyal to any of your friends, there is a major flaw in your 'friendship'
none of my bros would ever tell anything stupid that i've done