'i' should be capitalized. 'buy' should be 'but'. Arguably 'Soo..' should be 'Soo ...' since that's the correct usage of ellipses (applies to other uses as well.)
'i'm' should also be capitalized.
I think the 'he' in 'If you behave yourself, I might let you have a little, he' was a dropped 'h', but I don't know
'*I sniff the perfume on her wrist*' is kind of awkward because of the first person usage after just hearing her talk to the player.
'If you must know, I do have a weakness is to eat honey' is very awkward/unnatural phrasing. 'If you must know, I do have a weakness for honey' or 'i do have a weakness for eating honey'
'They remind me of the afternoons when the sun turns the palace walls golds' is fine grammatically, but I think 'They remind me of when the walls of the palace turn gold in the afternoon' might read/flow better. Just what popped into my head and merely a personal suggestion.
'I like how they melt on the tongue' What, Honey? Shouldn't this be 'I like how it melts on the tongue', but honey doesn't really work like this, unless it's made into a candy...
'Hmpf?' Should not be a question mark. 'hmm?' Works with that, but Hmpf IMO does not. A full stop, maybe.
Another suggestion 'But don't look at my astrology scrolls, they're not for servant's eyes'
'*Smiles Mischievously*' Is, again, a little confusing, given the previous bit, but I now notice that apparently the dialogue is randomly selected each playthrough, so I'll end my spell checking session here for now.
Non-concern to most, minor annoyance to some, and major dislike to me: I don't like the player being a cat boy, though as I said, it's a thing someone like me would complain about. I also don't like broadly suggesting alternative selections, since it comes off overly demanding, but would it be very hard to make it a toggle if it's only noticeable in that one CG?
Anyway, the gameplay definitely needs work as the NG comments. A Breakout system would definitely help as you said. On the "hints being stepped" worry, perhaps the player could have access to a notebook to easily reference her likes/dislikes.