Yeah, and as I've expressed before, my desire was for Chapter 3 to work through a possible schism between D and the MC as her "joy for life" and maybe some reality elements (plus pressure from outside) pushed them apart ... so we could go through their separate ups/downs, her wildness leading to a greater maturity (after hitting some lows) and the slow, agonizing path back towards each other with MAYBE a reconcilliation by the end. The underlying tension while keeping things entertaining there could have been truly different from prior chapters, yes: but, that would have made the game really take things to the next level, I feel.
I think a lot of our collective desires for what could happen would have been possible in a full-on Chapter 3. I'm not complaining about getting a somewhat extended Chapter 2, though: players can't be choosers and all.
That unfortunately happens at times and for the first time in my case (playing since the first installment) every one of my saves except the last one have become unable to load. Yet, if I play the prior version, most saves are still compatible.
The long-time claim is that moving up to another Ren'Py level is the culprit, as that platform - for all its advantages in VN development and delivery - has an open policy of not guaranteeing that later versions will be backwards compatible with prior saves.
Maybe see if you can at least make a save in the prior version near the end - right after D's virginity is taken, essentially. I found that saves after that point were compatible with the latest installment.