I don't care about the game ending or not ending, but the personalities of the characters have become static.
There's no progression to perversions (petplay was mentioned, but theres a lot to choose from) and no progression in the characters personality or interaction with MC. Its all just FWB with zero jealousy, which isn't even interesting in porn logic.
There needs to be some kind of resolution to all this sexual activity.
Some character needs to make an organized harem, or some smaller group needs to become the wives, or they all need to just have normal lives.