There is one major factor that makes all of it that much more unbelievable. Nothing in the story of the females in this game gives legitimacy to any words of regret or desire for reconciliation. They just want the world and everyone in it to make their efforts as simple as possible. Each of them using the method most convenient to accomplish that.
Even in the most lenient of societies, a bank robber does not get to keep the money if they are caught. They can't show up in court and say I can't give the money back because it is gone when they dumped in to stocks and bonds and everyone is immediately fine with them living off of the dividends. People just aren't that stupid. The five took the physical, mental and emotional well being of everyone around them to buy stock in social status and influence. Ashley has now decided to join with them despite her preaching peace love and groovy flowers.
It's pretty clear already that justice will not be had and revenge was never on the table. The MC is going to be ok with it all as long as he gets to see tits and maybe get his dick wet a couple of times. That will be the limit to the depth to this story.
I think you kind of misunderstood me, I personally like the game xD
I just dislike Annie, or better what we have seen of her till now. Personally, I don't get the notion that we cannot enact revenge. There are three obvious scenes that have the tone of revenge, with the Kate blowjob being the most obvious pick among them. Her scene in the library makes clear that this act hurt her deeply. And the MC laying into her at point drives this home. So far that she is truly shaken and acknowledges herself as broken.
Additionally, the author mentioned that the second part of the third update will have more and finalize the options to have a little revenge on each of them and showcase a path to get even more revenge on them.
As you said yourself though, her hypocrisy makes her realistic. People in general are weak and quick to shift blame to anyone but themselves because that brings guilt and regret. It's one of the most common mental defenses for people who have done something seriously wrong. It's also a matter of sunk cost fallacy, it's hard to get out of a hole when you have spent so much time and effort digging it.
Also sucking random cock as a college girl is not that unrealistic either... Especially when she probably knows deep inside, she has royally fucked her chances with her former stepbro. You have to keep in mind that this little sisterhood is full of broken/mentally weak girls at best (Sarah, Annie), completely delusional sociopaths at worst (Kate just says what MC wants to hear because it suits her at the moment). Won't find any upstanding paragons of virtue there...
My point is not regarding the grade or how realistic her attitude is, I simply 'dislike her'. I agree, we can find reasonable motives and arguments for her acting in a certain manner, but just because I can understand why someone chooses to do something doesn't mean I have to like it. Furthermore, for some actions I simply don't care about the motivation or reasons, as long as they are not forced, blackmailed or tricked into doing them. Lastly, we don't know how much or what motivation actually existed. With the comment of the author, I think we could continue this after the next part drops, or just agree to disagree on it.
For me, it comes down to personal preferences, but this is part of giving feedback. You mention what you like and what you dislike. I am a family person, and betrayal from that side I simply despise. Therefore, Annie would have much ground to cover, for me, to make her likeable or redeemable. Others may disagree with that, and I have no problem with that. Everyone is entitled and should have their own opinion.
For me, the feedback should be given that Annie has till now shown mostly in a confrontational manner that doesn't portray her in a good light. Her coming to him after the second humiliation feels cheap and while this time her apology sounds sincere, she still defends her friends and makes it all about her. She can't condemn them for humiliating him, well why does that matter to the MC? Does it somehow make it better?
Following that, even the scenes, which should actually portray her in a positive light, have an edge to them which makes her come across wrong. Cumulating in her stating people shouldn't hurt her friends...which brings me back to her being a hypocrite.
While I understand that the creator/author sees the 'streaking scene' as a revenge action, for me, it doesn't work in that way. What difference is there between this scene and one of the strip games? While they are out in the open, there is no one else there and no sign of anyone else appearing. Meaning, a public humiliation angle is not there. Therefore, as revenge per se it falls flat in my mind.
Once more, I wrote too much -.-
I don't want to sound too negative. I really like the game and the positives by far outweigh the negative aspects. Most of this also likely comes down to personal preference.