Alrighty, so this thread isn’t really new or active, but I happened to stumble upon it while looking for information on ISTP & ENTPs… I wanted to answer this question since I’m an INFP, lol
Personally, the personalities of ISTP and INFP don’t seem that compatible to me, for a romantic relationship at least. INFPs are probably bound to annoy the ISTP. And the ISTP might be too… blunt for the INFP? I do think a friendship could work out between the two, but idk, it depends on the individuals.
Also, I’m kinda basing this off of stereotypes since I’m not an expert in MBTI. It really does just depend on the individuals. They could bond over certain interests or something, the specific ISTP/INFP could be very patient with the other person compared to the stereotypes, etc etc.
Extra: As an INFP, I generally look up to ISTPs, I think they’re cool ^^ Would I ever date an ISTP? Generally no, but it depends