okay but

a bellatrix story when she was forced to marry rodolphus at the age of 18, not even a year after graduating from hogwarts

she’s expected to go into the marriage and be the ideal pureblood wife to compensate for what andromeda did (running away with ted tonks) but even though she tried to do exactly that in the beginning, bella always felt that she was meant for something else – that she was meant for greatness

enter voldemort, and voldemort’s agenda. bella latched on to that not only because she’s a pureblood supermacist, but she also realized that if she just got rodolphus deep enough into death eater activities and tricked him to making a mistake, she could get rid of him by having him killed or sent off to azkaban.

in her attempts to get rodolphus more firmly into death eater activities, bella ends up doing the same as well. And soon she realizes that that is the outlet she has needed her whole life. She has always been exceptionally gifted when it comes to dark arts and offensive magic, and she excels in being a death eater, catching voldemort’s attention.

so he calls for her, praises her and bella feels that for the first time she has been recognized as the force of nature that she knows she can be. She can’t be like narcissa, and she wasn’t happy to stay home and play house with someone who didn’t challenge her and appreciate her. 

And eventually when it became more and more obvious that rodolphus was nowhere near worthy of bellatrix, voldemort asks her why she even keeps him around. And she says that well, it’s not like she can kill him (arrange his death, yes, but to kill him herself?).

And then Voldemort asks why

And this is where the story would stop being canon compliant.