With the male INFJ... I wonder if he's been mistyped. But... he sort of exemplifies split personality qualities and it's really difficult to tell. Ni-dom, for sure. But as to Te/Fi or Fe/Ti... it's almost as if he jumps between the two. He's bisexual and has gender issues. If he's hanging out with me or other females, he's more Fe/Ti. But when with the males he's more Te/Fi it seems, from my understanding of it. It's hard to distinguish if and which of these qualities are true behavior or mimicked behavior. They could all very well be insecure Fe.