Is AUTHOR wrong in the post ? POST : So here's what happened.

I told a friend some thing about his girlfriend, he says they are almost over. So I told him some shit that she did to others.

He told me he wouldn't say anything to her. I believed him because we've been friends for a few good years. Later though, she texted me asking why I was talking shit. I specifically told her I didn't and she believed me. 

She SS'ed it and sent it to her boyfriend. He texted me and asked why I lied. I acted stupid and said I told her the truth and never had the conversation we had. 

I like this girl by the way. She meant a lot to me and still does. She gets treated very badly and she truly doesn't deserve it.