More like an ending where you don't end up with anyone but a person can dream I suppose
I actually think this game might be veering more towards not having an explosive manwhore ending where the MC gets rejected for it like in AL. The affinity system, for all its faults, will perhaps ultimately put up the roadblocks to dealing with a situation where the MC is still fucking around with every LI and side girl by the end of the game. So far, Maya, Josy, Quinn, Jade, Cathy, Heather, and Lily have all seemingly been blocked on specific affinities, the DnG game may have also hinted that Camila, Riona, Sarah and Melanie will be blocked for the non-DIK path, and more decisions where you choose between doing something with one LI or the other could be deciding factors later on in determining who you end up with. We even saw how the Jill choice cockblocked you from hooking up with 3 side girls, so there's a lot of things being decided for us in this game.
I do think there's potential for certain things to blow up in a manwhore player's face, like pursuing Bella and Jill at the same time, pursuing M&J and Jill at the same time, pursuing Sage and Quinn at the same time, etc, but ultimately I think we will have to make some crucial decisions at a certain point that will lock you in to specific relationship endings and block off all others. I also think it's possible to end up with none of the main girls and even side girls, but for that I feel like a player would have to have messed up every possible relationship by doing everything wrong.