If the girl was with someone for X amount of years and the entire relationship she was the one bringing in all of the money and providing for not only herself but him as well; do you think it is acceptable for this woman to in turn want a financially stable partner who can help her out with finances for a change?
Well think about it from their perspective. Should they support you financially because you supported your ex financially? No, that doesn't make any sense, and honestly they are not gonna give a shit about that because it doesn't affect them.
But... I dont think its wrong to want a guy who will financially support you, it just depends on what you have to offer in exchange of that financial support. I'd be happy to financially support a woman who cooked for me, went shopping, took care of the kids, etc. while I was working. But if she just wanted to sit on her ass doing nothing while I worked, then I wouldn't want to support her.