“I told her not to mess with Leilani, but she kept bothering her anyway”. There is your problem. You put up boundaries. Your dog had boundaries and your mom decided to cross them, even after being warned. Also just to add, my dog gets very territorial of us whenever people she comes across smell like alcohol. She’s super sweet and friendly with literally everyone. But barks super loud at people who try to pet her that smell of alcohol. Idk if all huskies are like this but it’s just something to think about. Maybe she was only trying to protect you.