Written for Challenge #116 Family quarrels for Bellatrix Lestrange: The Dark Lord's Most Faithful Forum.
She hadn't meant to tell everyone that Andromeda was dating a Mudblood it just slipped out while they were having an argument.
Andromeda was angry at her because she told, her parents were angry because she hadn't told sooner and Bellatrix found the whole thing amusing because for once she wasn't the one who was a disappointment to their parents.
If she could go back and unsay everything she would. Right now Andromeda was packing her things she had been ordered to choose between the Mudblood and family an she had chosen the Mudblood.
Narcissa didn't want her to leave, but no one even listen to what she wanted or said. The only time anyone had listened to her was when she revealed her sister's biggest secret and it was the one time she wished no one had been listening.
She hadn't meant to reveal it, but she was so wound up about Andromeda going on and on about how Narcissa kept following Lucius Malfoy like a puppy.
Bellatrix had said the same things many times and yet it stung more hearing it from Andromdea.
So she hit back with how pathetic she acted around the Mudblood and now everything was falling apart.
There had been arguing between her parents and Andromeda had said she wouldn't and couldn't break off the Mudblood, her parents said she was no daughter of theirs and all of it Narcissa blamed herself for.
She wishes that she hadn't said anything, she wishes that she had never known about Andromeda and the Mudblood. She wishes her sister wasn't leaving.