If one of your friend accidentally wrong...

It really depends if the text message says something good or bad about me. If it's something good, I would really thank him/her. But if it's something negative, that's a different story. I would confront him/her. I would ask why they need to talk about it with other people instead of talking to me first. That's one of the things I really hate, talking about my negative traits with other people.

Definitely confront him/her! They are not really good friends because they said something bad about me to other people. I wouldn't do that to my own friend. So he/she was just pretending to like me, then it's good I found it out eventually through that text message. I hate people like that, I'd like them to tell me right to my face they don't like me so I will not waste my time on them.