My friend stole my crush.

I secretly told only one friend that I liked my crush... But ever since then, she's been getting closer to him. After that, she told her friends that rumors had spread that I liked him... I thought it was because I made it too obvious.

Besides this, at some point, the two of them started texting and even meeting up on weekends. Then she came up to me and started trash-talking him, saying things like, "They watched a movie together today and it wasn't good," "He has no sense," and "Why do you like someone like that?" So I said, "Wow, I'm really jealous. I want to see a movie too," and she replied, "I told you it wasn't good!" Does my friend like my crush? Or is she acting like this because I'm easy to take advantage of? Should I gradually distance myself from him?