Allyn's stepmom is transitioning a little roughly

Me: My middle name is Allyn. A-l-l-y-n. My step mom: No. Its A-l-l-e-n. Me: I'm a girl. Its spelled A-l-l-y-n. Step mom: Its A-l-l-e-n. Your dad told me. Me: I think I know how to spell my own middle name! Step mom: I have your birth certificate right here! It quite plainly says.... That your dad doesn't know how to spell your middle name.