I've got a friend that I'm 98% sure is INFP (unhealthy in some aspects; uses language like, "I hate myself" and is constantly comparing herself to other people, wanting to be more like them- something I noticed my ENFP friend does also). She and my ENFJ buddy hooked up, but the ENFJ guy's a bit of a man-whore, so he ditched the INFP for other girls, and she still had feelings for him- even as they weren't dating.
So, this was... over a month ago; she's still angry. She saw another girl given the same treatment by the ENFJ, and she took empathy to a new level (slow down, Fi!) by taking some- what I find unjustified- actions.
And this is just one guy. She's ranted about exes and how they've mistreated here, while I (whether two months ago being very INFJ or now being very xNTP) let situations like that go and have even befriended those who've caused me harm.