<human>: Can you give me the gist of the text in a nutshell?

I met a gorgeous girl 6 months ago and everything went perfectly. We got on so well and always were having a great time together, whether we went out and got drunk and kissed on the dancefloor or just staying in under the covers watching a movie. Our personalities and sense of humor's seemed to just click.

We've not said I love you's, but around a month ago she ran up to me on a night out with my friends and kissed me and told me "I really really really like you".

Now, just a few days ago she came round, we spoke for a little while and when I asked if she wanted to hang out for a bit longer she said she wanted to break up and was no longer invested in the relationship.

I just don't know how this can happen so quickly. She's graduating university at the moment and she felt like we wouldn't last as I graduate next year and she's potentially moving away for an internship abroad.

My emotions are all over the place and I just want some help to understand whats happened.
<bot>: girlfriend spontaneously told me "I really really really like you", then a month later she's no longer interested in a relationship with me.