By the way, I have a little idea:
It would be nice, but certainly not necessary, to add the ability to stroke your girlfriend's belly, perhaps a separate mini-game or feature. This could make her want to take more food, which would make her belly bigger than the maximum, leading to a reddened belly, but that's just an idea.
Speaking of which, how is the development going? Hope you are doing well, looking forward to the next update!