Diamond Tiara is a spoiled brat and a bully. However, I do think she loves her father very much, and while she has love in her heart, she has the potential to become something better. As for Filthy Rich himself, I actually rather like him. He's obviously an extremely savvy businessman, but more than that he is not above disciplining Diamond Tiara, and I think he tries to be a good parent, and not just give her everything she wants. So, all in all, thank you for this rare look at their relationship.
I know that feeling too - especially since my father passed away from cancer fourteen years ago...