Why do some women have a more aggressive female scent than others?

Yes..us men stank too, but I have been with all types of women and some were very insecure about their female scent, and feel uncomfortable if I want to please her. I get strange looks of embarrassment from one girl, and although she was on the musky side it didn't deter me, not until she just looked so tense and insecure that I couldn't go through with it. other women are as fresh as daisies, and some like strawberries. One girl though, miss daisy, thought that the act of pleasing her, or any woman, was repulsive and didn't want me to please her, which is something I love to do..SO, how do I deal with this, and is there a way to talk to a girl about her scent without offending her...yeah, this is a hard subject to broach for some, honestly it doesn't bother me to talk openly about any female issue since I have lived with 3 at one time, half of them strippers, so I kind of just got used to speaking openly with all of them.