It seems that INFp does make sense. It would also explain the relationship between her and an ISTj friend. It's not bad, but I don't really see the duality. I guess it's not there.

Expat, I like the way you made it sound logical why I would mix her up with an ENFj. Because she gave me little reason to doubt that typing. Except for the vs quarrels with the INTp, which seemed to have more effect on her than Erkki.