... it would have bin nice to have some kind of dating feature where you could invite them in your room or somewhere else. Having sex isn't even important in this case you could just talk or spend time together. This would add dynamic in this game.
Anyway, that's just my 2 cents putting up here. No matter what I like the writing and the mc.
I think I finally understand what you were saying. The issue is you originally said this feature was unique to an older version of this game, but it's a common mechanic in brothel management and training games.
For example, in Brothel King, there's a lot more options about what to say, many topics of conversation, figuring out what they like, etc. However, I don't necessarily like how it is implemented because you're trying to manipulate the character's mood and lewd stats, and it's a waste of action points to have so many options and the possibility of choosing an ineffective or negative one. Another example is in Jack-O-Nine-Tails where you can reward girls by going on a date with them and there's a ton of other options, but the result is usually only a few lines of text and sometimes one image.
More importantly however, this feature is already in this game, Wicked Rouge. If you click "locations" and goto their room, you can talk to them there. There are just no cut scene events like you're saying though.
Usually in these games, you're trying to affects stats (relationship/love, mood, lewdness, etc.) so it would be annoying to see the same long event scene every time you want to use a particular option. Talking to them, giving them gifts, or going to places is mechanically very similar to training by another method, so the character event progression is usually like dating sims, they're only shown when you reach a certain threshold stat and aren't repeatable. I suppose you can blend the two and have the repeatable action events be slightly longer and change based on stats like Monster Girl Club Bifrost, but again, it's another form of training and the story progression events are separate.