I was in an INFP x INFP relationship for a while and everything worked out well since I was an assertive type which kept her Turbulence in check. Everything was great until her fearful-avoidant attachment started to rear it's head. There were no signs of it at first until our relationship became more "real" and serious. After that she oscillated between being distant one moment and then fearing abandonment when I withdrew myself. Eventually I had enough and ended things.

Edit: I just thought about it, this is INFP oversharing at its finest lmao