I'm a senior and me and a girl were at the door of the classroom ready to leave. We were talking and all and we both had French together last year. I asked her what she got on her exam, and she said 85. I then told her with a smirk, "85? No way." Then her eyebrows raised and she was like, "Yes!" And I said while squinting, "It can't be..." And then after that she walked past me and the conversation died off there

I was just standing in my own spot and I began talking to her when she got really close to me since she was walking towards the end of the classroom. While we were talking, I was somewhat turned sideways and I maintained that position without turning all the way to face her. I was also looking her in the eyes. I had the urge to back up from her as we were talking but that would seem as if I'm shy.

Well anyways, she kinda faced away from me at the end and walked down farther and the conversation ended there. Did I intimidate her/make her too nervous?