Should ian_lena_pure get set to True in the Ian/Lena/Holly throuple path if Ian and Lena have not cheated on each other at all up to that point? Or does the fact that remains False on that path indicate that Ian has doubts?
ian_lena_pure
is a flag for Ian/Lena being a fully faithful and dedicated couple, without Holly's participation. If you have the trinity active, then it sort-of implies the "pure" aspect because it cannot be formed without these conditions.By not setting the flag on trinity route the dev can discern between these routes easier in the script.
This scene shouldn't trigger on trinity route, it's a bug. It's supposed to be scene for Ian/Lena as a couple, and there it covers all couple variants, but doesn't take into account the trinity aspect, because it doesn't "expect" that branch in there.But in the last Ian/Lena scene in this version, Lena still says that Ian is distant like some secret thing is bothering him.