Telling a stranger that my friend of 12+ years is banging her fiancee

My friend (25F) is currently dating someone, at first our circle was like good for yooou!! Cheers and allat pero we did notice she was being really secretive about it this time which she never does. She posts the guy on her finsta (private insta) but its always the guy facing the other way. What truly got me off was her choice of words on one story where she said verbatim “i cant reveal you yet baby but soon enough i will!”

Idk if its my sense of privacy or what but i dug a little deeper on the guy and found out hes local from our city and hes a seaman but what i also found out were two accounts! One had a profile photo of the guy and his supposed fiancee and another with no profile and 10 friends, i looked at his friends list and behold theres my friend.

Now i dont condone cheating, i despise it talaga so i decided to confront my friend about it and when i did she got so angry nga i knew, she cussed me out threw every name in the book and when i thought she calmed down i asked her if she knew the guy was to be wed, she said yes. I didnt reply and she started calling me and my cell so many times and when i answered it she was screaming begging not to tell anyone but i stood my ground and said im sorry but i will.

So yeah its 10:16 and in 14 minutes a dm containing our conversation and my friends insta stories will be otw the the wife thru instagram ;)

Edit: im a guy sorry for those who messaged 🕺