<human>: Can you condense the text into a few key points?

So we've been together for almost 3 months. I know, it's not much at all but we've all been there. When we first started dating she was really forward, talked a lot, texted me a lot and almost never stopped. I loved it. 

But in the past month or so things have been weird. Her responses are really short and it takes me almost 2 hours to get a response, if she even responds or just looks at it. I am worried that there's something she's not telling me... 

I've asked her if I am disturbing her or so, she says she loves when I text her but she's having a lot of stuff to do and says she has a lot of plans for this summer break before school starts again. Sure, she has a lot to do. I've been with her once this summer break and I'm OK with her not having that much time. But at least when she responds I'd like a response that leads to something, not just "Ok" "Yeah" "Nah" etc. 

I've even talked to her best friend which I am really good friends with if she has heard something or so and she has heard nothing at all, you know something that could've happend etc. She even says she doesn't recognize that "behaviour" from my gf... 

I just need some energy boosters, tips and maybe some help on how to deal with this. It's a new relation, I get that, I know we haven't been together for so long but it's still worrying me if something has happened that she doesn't want to say or that I've done something wrong.
<bot>: Gf basicly stopped responding to me sometimes, I am worried I did something wrong or something happend to her.