AITA for trying to help my friend who exhibits signs of substance use disorders

AITA for reaching out to people I know to try to assist my friend who has problems with substances. People in my family have a history of substance disorders so perhaps I noticed symptoms earlier than most. They have exhibited aggressive behavior and aren’t acting like themselves. I tried to express my feelings, but was not heard. I understand that I violated trust by reaching out and bringing it up, but I still think I did the right thing. I care a lot and I want to help my friend. We are currently no longer speaking. AITA?