You guys keep picking this game apart way too seriously. Vi's headspace, Eric's headspace, their motivations, NTS/NTR, rudeness to Sai, etc, etc, etc. It's a game. It's fun, it obviously has a good story and illustrations, and it's sexy. I'm sure everyone on the thread can at least agree on those three things. You may not agree with everything that happens story wise, but you don't have to because it's not real, it's a creators fantasy.
These threads get so tedious with the plot and story criticisms about this or that, wanting to know motivations, thinking the way Sai was treated was wrong, etc, etc, etc.
To my knowledge, Circle is not a professional. I may be wrong but I don't think that he's ever wrote a published novel or play and I don't think that he is a screenwriter in the movie business because he would probably be doing that if he had the talent.
He's (or she's) just a person who enjoys making and crafting a porn game and compared to the other offerings out there, he's pretty good at it.
Here's everything that we know about the 2 main characters:
Violet and Eric are 2 18-20 year old young adults. They are both extremely horny. We know that Eric loves fucking Violet and gets really turned on by the idea of Violet fucking other guys. We also know that he is not immune to the charms of other women, especially when they use Vi to seduce him. Violet we know wants to fuck other guys, not just for herself but because she knows Eric likes it too. We know this from her thoughts and everything she has said going all the way back to chapter 1.
Like poster yourmomma keeps telling everyone, go back through the game and pay attention to everything that Violet and Eric say and think about their relationship and what Violet says and thinks during both photo shoots. It's all right there.
Is it perfect, no. But it is a great porn game so just enjoy it for what it is and stop trying to rationalize real world ideas, values, and scenarios on something that's just meant to be fun fantasy.