That's only because DPC suddenly wrote Jill as someone who was incredibly naive and stupid.
She's always struck me as someone who is "incredibly naive" at least when it comes to Tybalt's intentions so, in a sense, that plays into this situation and doesn't seem that inconsistent. However, I still don't think that excuses her blindly accepting Tybalt's account of what happened at the party. She didn't believe the MC after the Chad incident and tried to resolve the issue despite his objections, so I don't see why she wouldn't try to do the same here.
Trying to get these two in a room together to resolve their differences seems more like what Jill would do and maybe that could still happen in Ep 7, but unfortunately I suspect not because it's not the same level of high, convoluted, and often nonsensical drama that DPC deals in.
Perhaps Vinny could be that once he appears, the game also makes parallelisms between him and the MC
I personally hope not because then it's another of those "unseen villains" like they had in AL, only this one would really come from absolutely nowhere and I think it would pretty cheap to do it like this.
I don't think it's a dream, it would be quite "unfair" to give a preview of something that doesn't happen.
They gave out previews of the DnG game which had multiple sex scenes that "didn't happen". Granted that due to the obvious fantasy component of DnG people kind of expected that any scenes within it would be pure fantasy, but I wouldn't say that DPC is above showing a potential fantasy/dream sequence.
It does seem like something that's a little too good to be true; Sage and the MC sitting together very openly in front of the HOT house whilst Riona and Quinn flash their tits at him. Maybe it's something on the DIK route since you can imagine a DIK MC doing this, or maybe it's a fun and irrereverent "compare the tits" contest, but it's probably not going to be anything more than that.
And that game had place only in MC imagination (at least in such way)
I just don't think that "DPC spoils something important" is always the case. We've already seen how he sometimes misleads us with those previews.
And this one is misleading too because of all the people crying, "FOURSOME!!", when that's for sure not going to be case because DPC doesn't give away previews of sex scenes.