@Walter_vi_Britannia Having read more of the LN as well, she's definitely not into dudes. When she's getting chased about by a guy, she very much hates it. In fact, the only people she comment on looks are if they're cute/good looking (All Girls so far), or if they're ugly (All guys so far).
Though, respectfully, I like the Yuri route more. It always weirds me out when a man suddenly becomes attracted to men just because of a gender change...