One fragrance you may want to try is Vera Wang for Men. It is a fragrance my girlfriend pushed me to try. Based on the reviews on Basenotes I was somewhat reluctant. Not that the reviews said the fragrance was bad but rather the reviews complained about lack of longevity. I gave it a test and really liked the fragrance and the longevity was actually good. I get 6 to 8 hours which is really not bad at all. The fragrance does change significantly, going from a very tangy fragrance at first spray to a very pleasing relaxing dry down, perfect for close in work with your girlfriend. I would say it is more of a cool weather fragrance but it is light enough to be work in warm weather too.
Like you I'm not big on the androgynous fragrances. There are a few that I like but as a general rule I prefer a more manly smell.