Case Study: The Quiet American (about an ISTJ and an INFJ) (I'll describe the movie another time, I just wrote this post for one hour and then lost it when I tried to post it)
These people can offend each other and bring out the worst in each other. And most of it seems to be about the turf war these types fight over thier 4th and 5th functions. So the extraverted sensing type cares about symbology, and I don't, I care about a frame of reference to the past, they don't, and we both offend each other that way. (try to imagine an ENTJ admitting that they have less original principles than an ESFJ. And yet, many extraverted feeling types are excellent editors, and older E_FJs are experts at using the right words to describe something). I also wonder whether animosity is more likely to occur between middle aged dynamic opposites. And yet, these types get in fights as kids also.
And on the other hand, some people are good friends with thier dynamic opposite.