Wow, there's a ton going on here.

What's that guys motivation for treating someone poorly? He's a millionaire. His life is probably founded on treating people poorly and he treats people that way because he can get away with it. He was probably an egotistical and arrogant piece of ^%$# and you shouldn't even worry about him. He's in the past.

She's a powerful and successful woman. I've read that women with lives like that tend to look for a sort of dom/sub relationship. Unfortunately, her last one was really, really unhealthy. Basically she didn't want to be in charge for a little while, but it took a wrong turn.

I hope.

Secondly, what can't you get past? I'm kinda confused. Is it that she would perform certain acts for him, but won't for you or is it that she would do it just because of who he was?

If she did certain things for him that she won't for you, then that's an issue. But if you can't respect her because of her past, then you need to really think about your past as well. People make mistakes and she shouldn't be punished for something it sounds like she's punishing herself over anyway.