My ILE friend has talked about finding one-to-one interactions uncomfortable and that she prefers groups, but her reasoning was less based in the fear you described above and more in that she felt pressure to keep a conversation going. In a group she was released from the burden of knowing what to say. Maybe an Fi PoLR thing? I think she appreciates me because she feels we can be together without causing her discomfort...maybe that's how my demonstrative helps her.