Probably would have made more sense to never have added Chloe to this story in general.
I disagree somewhat. While I can understand the disappointment - and share it - of not being able to get all girls, if we see this game and the announced Daniel game as a single entity, it helps to already have a basic understanding of the people involved and have them interact with the girls from "the other game". So with this plan in mind, I do think introducing Chloe was the right decision.
Whether you do or do not like the plan is a different beast. But in the end this will be an (unexpected thanks to the missing tag) "multiple protagonists" game and intertwining them makes more sense than individual stories who somehow run in parallel and we just get told (or see by the resolution of the ending) that they happen in the same "universe".
I wanted the story to continue and get spicier.
Yeah, always a problem. Some players like to get the spice up, others are content at a certain level and do not need more. And some games simply overstay their welcome by dragging on too long, while others again end too early. It can only be wrong
Personally in this game I think Jenny already has been explored enough - even on the dom/sub route for me she doesn't give the feel of wanting to go to the extremes, but that's just a personal impression - whereas I would have liked a bit more of Izzy - she is my least favourite LI but I think that is precisely because of her only getting one "wrong" scene and one "right but neither romantic nor dom/sub - what is this for a relationship" scene. Others may easily think differently.
But in the end, I stumbled across this game a couple of days ago by accident and I am very happy I played it and enjoyed it, but I wouldn't have needed it to last much longer in general. That to me also would need not only more spice but also more story (but again, that is what others hate, all the story getting in the way).