My cousin did this:

My cousin is 16 years old, and I found out she is online dating a 25 year old man. She told me not to tell anyone else that she was, and that she thinks it’s true love. Well, one night, I accidentally walked in on her taking nude photos to send to this “guy” and I took her phone when she was sleeping, texted the guy to break up and to block the number. A day later she saw the text I sent to her “now ex” and we got into a huge fight now she’s not talking to me. Did I do a good thing?