ESTj: You know I care about you, don't you?
INFj: *makes tea and hums*
ESTj: Oh, good. That's settled then.

...


ESTj: Is there something you'd like me to do or do differently?
INFj: I don't know.
ESTj: Ah, ok.

...

ESTj: It was a rather horrific day at work today, but somehow I made it through.
INFj: *frowns*
ESTj: *looks at her and starts smiling*
------------------

It's a veritable orgy of free love and emotion.
And as to immaturity of other quadras, umm, yes.