I had an interesting thought today, not sure if it is a type-related phenomenon.
So, when a dual pair is in the presence of one of their conflictors, does it make the non-conflictor of the pair more active in interacting with the "conflictor"?
EIE interacting with SLI+IEE. EIE "attracted" to SLI, trying to flirt. IEE becomes very outgoing, interacting animately and jokingly with EIE.