I agree! While Holly certainly likes Lena, Ivy, the other partners and had fun connecting with her inner slut, she is also a smart girl. Being more like Lena and Ivy opened her the door, but she also knows what Ian cannot stand, things like cheating.Seems like a reasonable interpretation from what I read in the forum, assuming the gent who said one of the ways it can happen is right off the back of Ian breaking up with Lena b/c she was cheating was accurate.
If your end game for being more-like Lena is to get the guy you want, and suddenly that guy doesn’t want Lena anymore b/c of reasons X, Y, Z. That throws a whole bag full of wrenches into the soundness of the initial logic. A smart character would be swapping to avoiding being like Lena so she could get and keep the guy she wanted. She might still be wild, but it doesn’t seem likely she’d do it behind Ian’s back. Sorry cucks.
This is one reason for theory A, I think Holly will mostly shut the door to her slutty side, keeping it reserved for Ian.
Since we also have a path with shy Holly being gently encouraged by Ian, Lena and the others to open up a bit, my theory B for slutty Holly came to be. With Holly and Ian experimenting some more with her wild side, but just a bit like e.g. her being open to go topless, some exhibitionism and erotic photos. They stay dedicated to each other too.
Theory C is for larger and wider experiments with Holly´s slutty side, e.g. threesomes, girl-girl and so on. But still above the table, no cheating and behind the back stuff.
The theory D, which ffive or Gicoo brought into play, is more a bad ending of C due to less than optimal choices done there.