Bellatrix was your mum. She was a good mum but she is making you marry Tom riddle, Voldemorts son. You and Tom are both slytherin and you both were 17 and your mother was Voldemorts most loyal death eater, so it would make sense to marry Tom. Tom really wants to marry you and he loves you. Even your cousin Draco is happy for you.

your in your room getting ready to go out when your mother walks in.