<human>: Condense the text into a few key points

Technically happened yesterday but this FU is still ongoing and I don't know how to get over it. Throwaway account for reasons. So, story time:

My sister finally gave birth to a little girl a few days ago. This is the long-awaited first grandchild for my parents, and obviously I'm a new Auntie to the sprog. Her name is "Isabella", and already I'm mentally calling her "Baby Izzy". All goes well until I'm told by our Mum and get it confirmed by my sis that no, we are under no circumstances calling the baby "Izzy". It will either be "Isabella", or if that's too much of a mouthful, "Bella". "Izzy", by degree of my sister and brother-in-law, is verboten. 

Now some background on me: I'm high-functioning Asperger's, which means a shitty tendency to say the first thing that comes out of my head without thought of regard to others. The filter I since gained only came after years of (bad) experiences - I used to be a lot worse. 

Combine the above with an all-consuming hatred of Stephanie Meyer's *Twilight* series (both books and films). 

You can see where this is going. 

Last night I told my parents, my sister, and her husband that I hated their little girl's name with the white-hot intensity of ten thousand suns and inferred that I would sooner hurl said little girl's toxic corpse into hell's mouth. 

Not the most doting Aunt-ly behaviour, innit?

My sister tried to write it off as my stress on seeing the baby in an incubator. Our mum tried to talk to me this morning. No dice. The sad thing is I used to love the name Isabella and would have had no problems with it used for my niece. It's the ban on "Izzy" and insistence on "Bella" - and my sister actually *likes* those movies so I can't discount that theory no matter what the BIL says - that's got me worked up.
<bot>: My niece is a "Bella", and I go into a virulent rage on anything related to *Twilight*.