Had a guy ask me the other day how to get an "alpha" female to be more feminine. You know the type–a woman who's ambitious and a go-getter and has a great career. And is probably fairly masculinized as a result.
Unfortunately, most of the men who are attracted to masculinized women are likely to be a bit feminine themselves. Unless he's some kind of savage of success from a higher social/sexual class (as in pro athlete or some such) or economic class and money isn't as source of contention for her, more earning power and ambition than you possess on the part of a female has the potential to sour the relationship.