Me and a girl from school have been talking for 2 weeks she expresses how much she likesme all the time, but she says she has mixed feelings?

Long story short, she has an ex who she dated for 2 years, he cheated on her, they broke up. She told me she still has feelings for him. She's been ignoring in school, and Has blocked me on social media, and I'm starting to think she is trying to cut me off, is she talking with her ex again? Btw she doesn't respond to my text