I'm mad at a family gathering and storming out cause they didn't get my niece a birthday cake.
Why would they not get her a cake?
I asked her to get them one but they forgot to do so.
Aww how sad they forgot to get one. The kiddo probably wanted one, too. I totally understand why you got upset with them!
They were just trying to hurt me on purpose.
That's doubtful, but it's still understandable that you're upset they didn't get her a cake.