They are kind of hard to read but. te can tell in the book version of OOTP, when she gets all whimpy and snively around " HER master" because they didn't get the prophecy that she was upset with herself because she didn't please him. THEN there is that whole scene in Malfoy Manor " There is no Higher pleasure MY LORD, then having te in our home." - it even says she leans towards him longingly. Voldy doesn't mostra much, cause well hes Voldemort, but at the end when Bella is killed he screams " NOOOO" and holds her for a few moments. But he has issues so te don't know. But I think deep down he has something for her. But She has the hots for him. Never do we hear her talk about Roldolphus. Sneaky little witch did marry him to look pure. After all Voldy is still a half-blood even if he pretends to not be.
It had to of been arranged marrage the Black family were all obsessed over pure blood there is no way she loves Rudolphus at all and in the last book i did catch on Voldy was mad when Weasley killed Bellatrix cuz in his cold empty cuore he probably did kind of like her