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In harry potter, Bellatrix is one of Voldemort's most beloved and loyal Death Eaters. Voldemort even trained her himself.
"trained in the dark arts by the dark lord himself"
She is married to Rodolphus Lestrange, but (as far as I can find) never shows any affection towards him. She shows much more interest in Voldemort. one of the best examples I can find of this is :
" 'My Lord... my Lord...'
It was Bellatrix's voice, and she spoke as if to a lover."
"Voldemort seemed to be getting to his feet. Various Death Eaters were hurrying away from him, returning to the crowd lining the clearing. Bellatrix alone remained behind, kneeling beside Voldemort."
and a few lines later:
" 'My Lord, let me. . .'
'I do not require assistance," said Voldemort coldly, and though he could not see it, Harry pictured Bellatrix withdrawing a helpful hand. "The boy... Is he dead?' "
So, did Bellatrix really love her husband, who she shows no affection to (that I can find), or does she truly love Voldemort?