I'm jealous of my girlfriends New York vacation. Should I be? And how to get over it?

I wanted to go to New York and she went with her best friend. She's staying in Times Square doing fun things for 5 days and I'm at home. This sucks.

How do I get over it? I think Ill end up going to New York on my own but I would've wanted to go with her!
I'm jealous of my girlfriends New York vacation. Should I be? And how to get over it?
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