I was seeing this girl that had a history of running her mouth. She even told me about all her ex boyfriend's fetishes (like being into feet and other dudes etc) and that he was jealous that the two of us were hanging out. This worried me, and I told her that I wouldn't be comfortable with her airing out my dirty laundry under any circumstance, and specifically asked her to never do that. She obliged, but I still wasn't sure if I could trust her. So I made up a social test.

I lied and told her I was into furries  (I'm not though there's nothing wrong with people that are you do you) and I asked a friend of here's if she could help me test her by asking what my fetish is. She agreed, then went on to ask her when I wasn't around. I got a call back from her saying that the girl that I was seeing said I might be into furry creatures and stuff, and that she basically told her right away. So she failed. 

I did end up telling her that it was a test, but then she got furious with me. She thought it was unbelievable that I could betray her trust like that. She still wanted to see me but I needed a break. AITA?