I have this too, I'm female and my ring finger is longer than my index finger.
But I've always been one of those people who feel so heterosexual that it's bland, lol. I'm contendedly asexual now in my older stage of life, but in my life before, boringly straight -- all my thoughts, fantasies, romantic interest and sexual turn-ons have been about men and the male body.
Generally in other matters, I'm half girly, half not; I've always taken a natural inclination/ interest in looking nice, in a pretty way while being comfortable, yet I've never been a fashionista or girly to that extent.
I don't paint my nails, my hands are always messed up like a gardening enthusiast's because I deal with animals and mud and farm feed, lol, but I still get my eye caught by a pretty top in a sale. Half girly, half not!
At the same time, some of my interests have been ones more heavily populated by males -- I spent many years of my life being a musician at amateur and semi-professional level and would be looking at guitars and amps and recording equipment in stores alongside bunches of guys. I wasn't a total technical head like the guys were -- I just cared if the items sounded right, but I did have a "masculine" interest in sound recording and a few technical bits and bobs like that.
I also do DIY -- I like to be capable of small repairs around the place, I can paint interiors and change fuses and do minor stuff that men more usually do. I once repaired sheetrock and changed a toilet ballcock! I like to know stuff like that because it's just practical.
But over all I think I'm more girly than the finger ratio thing seems to dictate.