My girlfriend dumped me because I didn't give her attention?

I was busy in school so I couldn't see her for 2 weeks, now I have holidays but I really don't like the city and I am staying with my parents at their summer house. I invite her a lot of times and I even told her that I would pay for her trip (almost 2 hours) but she called me "selfish and inconsiderate" because I didn't stay in the city with her.

I just though that we could have a better time out of the city in the nature. I am not planning to come back to the city during holidays.

She is not answering my messages and I didn't want to hurt her but now I realized that I took her for granted and she is so pretty and nice that she could fin someone else really easy.
How can I get her back? She is right at being angry?
My girlfriend dumped me because I didn't give her attention?
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