<human>: Can you condense the text into three sentences or less?

Throwaway for obvious reasons

Recently I met this very fun lady at our school. We hit it off right away and were texting very frequently. 

I fell for her silly jokes, witty remarks and caring side.

We officialy became boyfriend and girlfriend 2 months ago, and we were meeting up frequently and also texting.

One day she just went off the radar, and it was very confusing to me. I called her up to ask what's up, she told me she has exams coming up. I understand that she needs space and alone time so I told her that that's fine and I respect that, I just prefer to know these things in advance.

Needless to say, we barely text. I crave communication but I get 10 minutes out of her day tops and some days we go with 0 communication at all. Not only that, but the messages she does send me are just bland and plain. 'Yeah, i'm busy.' 'No, maybe later'. 

And it doesn't help that she is going away for 2/3 weeks especially since I haven't seen her in almost 2 weeks now.

These actions make me feel detached and I frequently get the thought of just telling her it isn't working out for me and we should just call it quits since it's the early phases.

I am just worried I might be overthinking this. I just can't understand why she would be very sweet at the beginning to being emotionally completely closed off.

I want to feel wanted and needed, that makes me feel happy. This just makes me feel numb and wondering what the hell i am doing.
I am busy myself but making 30 minutes of my day free is easily do-able.

I do realize that having an independent partner is very good in the sense that I have enough time to work on my own things.

I guess what I am looking for are insights or confirmations.
<bot>: Girlfriend that was very sweet and loving in the beginning of our relationship is now emotionally closed off, says it's nothing personal and because of exams. Makes me feel unwanted. What do?