I'm going to alert an old friend's pregnant fiance about my old friend's possible heroin addiction. Think I'm crossing the line?
Why would you alert someone to your old friend's heroin addiction?
I recently found out he does coke so I'm assuming he's also doing heroin.
You are getting involved in a situation that is none of your business. You don't know for sure what anyone is doing so you should not be spreading what could be rumors or lies. Mind your business and get on with your own life.
Addiction is considered a disease, he's being naive and stupid.
It's still wrong to mess with the situation like that and to reveal someone else's secrets they might not even be true.