I think they’re a bad match to begin with. While she had her career, self esteem and so intact, she had no real interest. It was only after her self esteem, self worth, etc. was laid low that she changed her standards. I think she was quite correct with her initial assessment; that she and Dresden were a poor match. So, I think, if it follows how this sort of thing would go in reality, their relationship won’t last very long or be very healthy for her.
I think they’re both pretty difficult people, but looking at it from a woman’s point of view, Dresden is a terrible potential partner.
As for “powers” or whatnot, she should definitely stay a normal person. Not every character needs to be related somehow or be granted super powers. The narrative needs a normal person’s perspective.