Miranda: "Well it makes sense I like cute stuff, I always was a maiden inside"
Also Miranda: "Well it makes sense he's comfortable talking to me, I'm an old man inside"
BRO MAKE UP YOUR MIND I didn't spend pages stanning your feminine existence for no reason did I???
(in all seriousness Miranda is super cute and her geek nature reminds me of plenty of girls I've known over the years)
What you like has nothing to do with what gender you are inside (it does have
some to do with the one outside though, as societal norms do affect the things you like through peer-pressure. Even if none is actually applied, the sheer fact that something is non-conforming might give enough of a slight feeling of uncomfortableness, that it outweighs the initial feelings of fun that would otherwise have hooked you into the hobby/topic. But all that is beside the point), so him [gender-neutral version for easier writing] liking cute stuff is just him being himself.
While someone enjoying talking to you would normally be the same, considering they are japanese it isn't really (their language changes bigtime along with the perceived gender of the speaker, so if he thinks he's an old man inside then his speaking patterns will be different from if he thought himself a young boy (boku) or other. Although must admit I thought he had trained away those speaking patterns because of his tutors - in which case the only thing that applies is the "old" part, suggesting he acts more maturely.
Which makes sense for the prince to prefer, considering the spoilers everyone has been giving throughout the last 20 chapters.
In short, feel free to continue stanning it. Behaviour and sexual orientation is different from perceived gender, and I would absolutely believe that a genderbending reincarnation would leave you considering yourself as both genders (even if you already considered yourself the new gender before bending, you will still have the old one ingrained in some ways).
It is the same reason why the sexual orientation remains the same after reincarnation, and why many likes will remain the same (but lack of entertainment and different capabilities of the body might likewise change some of them - such as martial arts) - there is persistence in state (aka the mind/personality).
(though some argue that sexual orientation is solely a function of dna and the subsequent brain, meaning it's not one of the culture and stuff (including dna/nature) and the new body decides that. Basically, "a simple function of nature, not a super complex function of nature and nurture", and reincarnation changes the result)
