<human>: Can you summarize the given text in a few sentences?

To start I'm [M 19] she's [F 18] 
We've been dating for 8 months now and are in a LDR temporarily (for summer vacation) which will stop being long distance in about a month. A couple days ago she told me that she doesn't know if she's actually in love with me and that she feels happier when she's alone. I was totally floored because leading up to this we were pretty happy (or so it seemed). Anyway I don't really know how to interpret this, she says she wants to see how things are once we're no longer LD but I'm pretty hurt and I don't really know how to approach this. Advice is appreciated, I really love this girl and don't want to lose her.
<bot>: Girlfriend says she's not sure how she feels about me anymore, could use some advice on how to approach this.