Friend ended the friendship because I didn't invite her to my birthday, is she overreacting?

My best friend and I became distant this year. We met up once, and because I'm so busy with my new life I took a little while longer to respond to her texts. I went away with my boyfriend and did say I would meet up with her when I came back for her birthday and mine which are close to each-other. When I came back though, and I ended up going out with my other besties for my birthday. I didn't wish her on her birthday either, I forgot.

My friend then sent me an essay-long text saying she's done with the friendship. Is she overreacting?

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+1 y
She isn't overreacting, you're underreacting and a bad friend. She deserves better.
Friend ended the friendship because I didn't invite her to my birthday, is she overreacting?
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