I know of two ISFJs on hand, one I know online, one I dated. Both are very family-oriented people, both are past-oriented people. The girl I dated was pretty vanilla but I know that there was more to her, I just couldn't relate to it. She also had silent expectations of me as to how I was supposed to act around her, although I'm not a very warm or publicly-affectionate person so that lent itself to the inevitable failure. The other ISFJ is plain awesome, very open about taboo subjects, has a sense of humor and it is great to talk to. She is in tune with more shades of grey of reality than the girl I dated, who kind of had flat ways of looking at things if that makes any sense. It doesn't matter what personality type you are, if you don't possess certain dimensions others have they can't relate to you and will probably find you uninteresting.