<human>: So for the past two months this girl that i became friends with has been driving me crazy! Whenever we talk/hangout we always have a blast. Our conversations cover a wide range of topics and both of us are so excited with what we have to say to each other that we interrupt each other mid-sentence frequently. Everything she says and everything i say is very in depth, and we love to analyze people and the way they act like they do. 

We usually spend an hour or so after class talking in the parking lot (Even when its freezing and we are shaking). But its a different story when we are in class. The other day (and this has happened before recently) she comes into class and sits in front of me but proceeds to not even make eye contact or talk to me throughout almost the entirety of class. Which makes me comb my mind thinking of anything i might have done or said to have upset her. Yes, its obvious that i have feelings for her, but i also highly value our friendship and i would really hate to mess it up by being impulsive and misinterpreting signals. 

But then the second we walk out of class it's like everything else is exactly as it was, and we have a blast. Could this be her telling me to keep my distance (i am the only one she does this to in class, she has no problem talking to anyone else around her)?

Should i be direct and just ask her whats up? Or should i just ignore it and continue on like its nothing?

Summarize the given text in a few sentences.
<bot>: Friend and i have an amazing time whenever we are together but as soon as we hit class, the mood sinks like a ton of lead bricks in water.