and locking Astarion off for them does not sound right (nor logical either - he is a civilized person and disapproval very often is "off"). I would ease his accessibility more or shift it to the personal interactions, not related to the reaction to quest taken.
I do agree here - some of his reactions to quests/interactions, particularly regarding topics of slavery and freedom, raised my eyebrows as they didn't quite seem to fit his personality and what we know of his past.
