INFP (The Idealist) | Decorating for your Personality | Mrs. Fancee [putting this under 'Humor' because I'm beginning to doubt the validity of this test/the MBTI, after many long years of extolling it]
I haven't heard this explained before but it makes sense. However, I will shut people out while still feeling obligated to be nice or social with them. If I feel my core values are put down or I was taken advantage of, I'll withdraw completely. I will rarely say why because I avoid conflict and feel conflicted about it already.