Yeah. I agree with both of you. I think that Bella had a hard time growing up, and she was desperate to prove herself to her parents, whom I feel she was very close to. Her father in particular. (I don't think that she would have gotten along with her mother).

As for Rodolphus, I think he did influence her to become the way she was, and I don't think that they particularly loved eachother. Jo did say that Bellatrix married him because it was expected of her. I think in a way, that would have been painful for Bella. I think she wanted to feel loved by someone, and Rodolphus was hardly her happily ever after.

Andromeda leaving would definitely have made an impact. Bella had lost a sibling to a muggle born, and there was no way of getting her back.