ALL of them are shut down because they're ALL mono. Not a single one of them wants poly or open with another.
This is where the crux of all the perceived inconsistency comes from. The design choice to not only have all the companions flirt with each other, but to to have cases like Karlach volunteer themselves to be involved only to heelturn on it later because of a general lack of development. The entire dynamic that was advertised to us got pinned on Halsin doing an absolutely terrible portrayal of it, and signs of a better dynamic that DOES involve the other origins they didn't get to develop it for remain leaving us all disappointed with the dynamic we were left with.
