AIO about confronting my friend?

Hey everyone, I need some advice. Last weekend, my best friend threw a surprise birthday bash for our mutual friend. I had no idea it was happening, and when I found out, I was hurt that I wasn't invited. I know I've been a bit distant lately due to work, but I didn't think it was that bad.

So, I decided to confront my friend about it. We had a pretty intense conversation where I expressed my feelings, and she said she thought I'd be too busy to attend. I tried to explain that I would've made time if she had just asked me. She seemed genuinely surprised and said she'd talk to the rest of the group to make sure I'm included next time.

But now I'm feeling like maybe I overreacted. Did I make too big a deal out of it? Should I have just let it go and pretended I didn't care? Or was it right to stand up for myself?