I'm going to snitch on my drug dealer who played me
Do you know him outside of buying drugs?
He is a distant family member. I've known him since i was 5 years old.
You're in a morally ambiguous area here: you're using drugs is no better than him selling. Maybe you should just let it go and quit taking drugs.
Nah, i'm just going to call the cops on him.
You are talking about sending your family member to jail for selling drugs and yet you are just as guilty of a crime by purchasing from them. Take a look at your own actions before you start trying to straighten out other people.