I was raised that you don't spend what you don't have and live within your means. So in a relationship I want to be with someone who has that same mentality and values.
Being with someone with bad credit could create conflict or tension because I would be the one trying to get a loan approved or buying a car or getting a mortgage. It would create a power struggle, and a relationship has to be equal.
One guy I dated, every few months he had a new car and wasn't making payments. Then his business went down the drain and he had to file for bankruptcy. I don't want to be with someone like that again.
If a relationship got to the point where it was serious, I would sit them down and say 'we need to think about our future. This is where I am financially, this is where you are.'
If they have horrible credit, I would probably say 'I'm not the girl to make you happy.'