You must have played a different game. Sage get the evidence of being cheated, and first she decided it's okay for her to do the same , because she is horny, and MC is the onlyone who even dare to fuck her, everyone else on the campus basicly afraid of Chad.
while the same time she wants affection from Chad, like when he goes back asking a favor and kiss her on his forehead, she wanted more and she got angry at him for that all she get. When MC stay with Sage the next morning , she basicly telling him "she is off limit " because she is in a realtinship , she considering herself being in a a relatinship what is not over in her point of view until Chad , and not not Her , but Chad end the things.
BTW, if you not agree in episode 2 to be her " Fuck toy " because that what she use MC for. She again offer herself in episode 5 , where you can jump in to be her " Fuck toy " .
In fact she constantly offerign herself , in a none Fuck toy path.
but dpc did give her a privilege, that you can In fact she jump her into a relationship " after Chad Dumps her ". Something that for those who like Josy and Maya but might not fan of the " cheating " aspect, cant have the luxury of it.
but the only main girl who is really a clean slate is Jill.
You can blame dpc writing for this, because he wrote this way.
but I guess that would require a bit realistic critical thinking rather than just blind hatred for a character. Like how actually Zoey doing exactly, if not worse than what Josy did in ep 10, but somehow, that is okay, and not meet the same " critical view , toward Zoey. Oh I bet becasue she was not Fucked by anyone during her trip, and you got a nice little " Interlude "
In short it's always, double standard and moving the goal post with some of you for your own benefit and you accusing Darkwen , With Bias, what a Fucking Joke