Masculinity In Miss Carraway's

When describing Miss Baker, he focused much more in her body features, like her being small-breasted and slender, so basically being boyish, and Carraway used the words ‘young cadet’ for her, which implies masculinity. Back than it was not common for woman to be associated with any form of military.
These two brief descriptions for two different persons in are in contrast with each other. A male person is described as feminine and a female person as masculine, which implies that his attraction lies either in the femininity of a man or the masculinity of a woman, which is, in both cases, not stereotypical for a heterosexual man, especially not back then.
In general he seems to be fonder of men, when it comes to first impressions or descriptions.