Headcanon: Those who join Papillon's hive but originate from other hives - or did not have a hive-, particularly ones known for acts of great violence, etc. are often distrusted by other members in the hive, regardless of what their queen has told them. If Papillon has any doubts however - at all, the distrust in fellow changelings increases severely. Converted changelings are also more likely to distrust an 'outsider' than a natural born changeling.