Again, which exact scene are you talking about? There's two (or three, i can't remember) instances where Lena has option to kiss Holly (one before the threesome and 1-2 after)Then in that case why would Lena hesitate on kissing Holly while she goes hogwild on the threesome?
There's fundamental difference between fucking someone while you are in relationship with someone else, and fucking someone while you aren't in relationship with anyone. Ian did the former. Lena does the latter. She might simply not care enough about the piece of shit Ian turned out to be (something she'll explicitly say about him in this scenario) at that point, to pay him any mind. Holly also appears to have gotten over her crush for Ian if she's happily fucking Lena instead.I also find it hard to believe that Lena wouldn't acknowledge the situation. You broke up with a person you are dating because this person fucked a close friend you know had feelings with your date. And now you're fucking that close friend yourself.
Also, for what little it's worth, Ian does have some thoughts about his role during the discussion with Holly, but that's only if Holly didn't have threesome with Ivy. If the threesome happened then Ian focuses on this instead of whether he had something with Lena in the past. And if he got entangled with Holly he acknowledges it too, but it's quite subtle:
Python:
i "Anyway... If you ever feel like getting something off your chest or just want to talk about something that worries you..."
if v7_holly_kiss:
i "I know I'm probably not the most suited but know you have my ear."
else:
i "I might not be the most suited but know you have my ear."