We need... Something. Something to make the fricking of the bot feel less samey. As it stands despite three positions, most of the variation is in clothes and floating monologue boxes, which makes every fuck feel the same.
Frankly I have no idea what the solution is though.
In my opinion and as a fan of this game, what comes to my mind about improving without messing a lot with the code and burn a lot of development time is adding small moments to the game that add more replayability, moments that can being seen only once per playthrough or during certain circumstances.
Dialogues that come from the bot reflecting on what she sees, events where she tries to be more human, use makeup on her own, trying to cook something nice for you, trying to create her own oufits, talking about the most recent sexual encounter and asking you about what you did and what would you like in the future, taking you on a date instead of waiting for you to take her out, having more reactive dialogues during sex and being specific about the current interaction. In general, making the bot more proactive would be a really good addition, and also adding more dialogues that reflect decisions and interactions more deeply, all of this could make the relationship more real.
For me at the moment the game is what it is and is really decent, just making a comment taking in account what other people have been complaining while expressing what I also feel is missing. I don't know what makes a perfect eroge or what is the best for this game, however, I have seen games losing their fans during development, I don't think this is the case but is always good trying to see the feedback through the complaints and opinions.